January:
In January, most areas are still in the harsh winter season, and the fish aquarium must maintain a stable water temperature of 22 to 24 ° C, and cannot relax for a moment. During the long winter months, if the water temperature suddenly drops significantly, the tropical fish will freeze to death due to cold or immediately freeze to death, or suffer from cold disease. Tropical fish cold disease is very dangerous, the initial rise of scales protruding, followed by loss of appetite, indigestion, inactivity and other diseases are becoming more and more obvious, and finally developed to skin shedding, soon death. Tropical fish are generally not easily cured from colds. Only when the water temperature drops and the fish disease is detected at the beginning of the disease can effective measures be taken in time to prevent the condition from continuing to deteriorate and thus restore health. The treatment measure is: when the tropical fish become ill due to cooling, immediately fish the sick fish into another container with an equal water temperature (preferably still using the water in the original aquarium), and add a small spoon of table salt to every 10 liters of water, and then slowly increase the water temperature to 28 to 30 * C. The amount of water in the container for the treatment of sick fish should be less, and the inflator should be constantly oxygenated; the bait should be fish worms, water earthworms and other palatable and nutrient-rich live bait. The number of baits is 2 times a day, once in the morning and once in the evening, taking care not to overdose. After such careful treatment, the sick fish can generally recover their health. In winter, tropical fish have a much more monotonous variety of bait than other seasons, mainly dry feed and pellet feed, and the nutrient content is far less complete than when the natural bait is abundant in summer. In order to ensure the health of the fish, some vegetable leaves and other plant-based bait should be fed. Before feeding, wash the soil off the vegetable leaves with water, and then blanch it with boiling water, and then tie it to a glass rod and sink it to the bottom of the box, allowing the fish to eat freely. Feeding this kind of food should also avoid excessive quantity, and take out the leftover part in time to avoid spoiling the water quality. It is also necessary to pay attention to what vegetables and plants are more likely to eat by fish, as well as the selectivity of different species of fish for such foods, so as to continuously improve the baiting method and improve the baiting effect. In winter, the number of feedings for healthy fish is reduced to once a day, preferably in the morning. For the residual bait and fish manure deposited at the bottom of the pond, it should be sucked out in time with a rubber hose together with the local dirty ice, and at the same time supplement the same amount of new water that has been dried, preferably once a day, and it is advisable to carry out the evening service. In winter, the days are shorter and the indoor sunlight is insufficient, such as thin ice on the windows, and the indoor light will be darker. When necessary, lighting can be added to the aquarium so that aquatic plants can photosynthesize and grow normally.
February:
In February, the snow and ice begin to melt, and spring is coming, but the temperature rises slowly and repeatedly, and the land is still a yellow winter scenery. At this time, the rearing and care of tropical fish should be as careful as in winter, and should not be slackened. Since many households implement intermittent heating in winter, room temperature changes have a great impact on the changes in the water temperature of fish farming. Therefore, the northern region still needs to use an electric heating pipe with a regulator to keep the water temperature of the aquarium at the necessary level at a regular level, and do not let it rise and fall freely. Tropical fish in the long winter, except for a few fish farming conditions are particularly good, fish farming technology is relatively sophisticated, the waiter time is very generous in the family still grows and develops normally, the fish in the general family are due to long-term intake of artificial food and lack of light and other reasons, much inferior than summer. In view of this, throughout the winter, especially from winter to spring, when the day is getting longer, the sun is getting more, the gonads of tropical fish are accelerating, and a lot of nutrition is needed, it is even more necessary to strive to feed some fresh food. The main sources of fresh food are: small-scale cultivation indoors; looking for ditches with more organic matter or pits and ponds with domestic sewage entering, digging water earthworms from the sediment; to large pits and ponds that usually produce more fish and insects, breaking the ice to catch "green jumping" fish and insects (foot scratching), in large cities such as Beijing, you can also buy them in the market trade market. After a winter of feeding, although often remove the dirt in the aquarium and local water exchange, but the bait and fish excrement will still accumulate more and more, this month should be carried out a , the second "cleaning", that is, fish and aquatic weeds from the aquarium are all taken out, with the upper layer of the box old water stored in the bucket, and then thoroughly scrub the bottom of the box gravel, rinse with clean water to spare, while carefully scrubbing the inner wall of the aquarium and the bottom of the box, until clean and dustless. After all these tasks are done, then lay sand, inject water, plant grass, and add fish, requiring clear water, green grass, and fresh fish. This kind of "cleaning" should be done as thoroughly as possible to remove the dirt in the box wall, the bottom of the box and the grit, and improve the water quality. At the same time, do not change the water too much. In order to plant aquatic plants, it is also necessary to fully understand their living habits, in addition to paying attention to the depth of water, the need for fertilizer should also pay enough attention and make appropriate arrangements. Chrysanthemum grass, evening primrose, foxtail algae and other aquatic weeds that do not require a lot of fertilizer can be directly planted in the gravel substrate; and aquatic weeds that need more fertilizer and soil with complex components need to be mixed with the fertilizer soil and gravel in the garden field, heated and disinfected into small pots, planted with aquatic weeds and then put into the aquarium. In order to prevent some tropical fish that like to rummage through the substrate to muddy the water, after planting aquatic grass in small pots, a layer of clean fine sand about 2 cm thick should be laid. Aquatic weeds that need to be planted in small pots are generally larger, such as crown grass.
March:
In March, some areas have entered the spring, but the temperature is still low, and the main feeding and nursing work is the same as last month. If the "cleaning" of the aquarium was not carried out in the past month, it can be carried out this month. The key points of doing a good job of "cleaning" are: gorgeous and beautiful fighting fish Feeding ornamental fish and fish must also change the taste Xi'an flower, bird, fish and insect market surprised the "golden leopard snake"
1 Completely remove the muddy water from the aquarium, that is, wash the substrate, remove the low-waiting algae on the stone and glass walls. Gravel directly laid on the bottom of the box as a substrate can still be reused after washing, but the soil in the small pot where aquatic grass has been planted must be replaced because the nutrients have been exhausted.
2 Sparse or overly dense aquatic grasses should be replaced by fresh and strong ones: old, weak and emaciated, dwarfed by graceful alternatives. Take from the aquarium, when the aquatic grass comes out, you should pinch the base of the main stem that began to grow roots and pull it out, and never pinch the leaf or stem end to pull out to prevent breaking. The removed aquatic weeds should be rinsed with clean water, while the rotten leaves and roots are plucked and thrown away, and the new branches that are retained and replanted should have roots. Undoubtedly, how to arrange aquatic plants in the aquarium should be customized according to the hobbies of fish farmers, but in any case, they should not be planted too close to the front glass, otherwise it will hinder the viewing. Aquatic weeds should not be planted too densely, leaving enough room for fish to move. Generally speaking, aquatic grass should be planted on the back and left and right sides of the aquarium, dwarf grass is planted in the front, and tall grass is planted in the back, while paying attention to the density and moderation, the layers are clear. If you can do all of the above, the natural charm of tropical waters will appear in front of fish farmers.
3 The glass inner wall of the aquarium should be carefully brushed with rags, plastic sponges, small brushes, etc., so as not to save dirt. If the wall of the box is attached to a thin layer formed by dirt that is difficult to wash off with water, it can be repeatedly wiped with dipping soda, and if there is a strip of stains formed due to water evaporation, it can be gently wiped with a rag dipped in vinegar. Do not use a knife to scratch hard, especially to clean the plexiglass aquarium, but also to prevent hard objects from scratching the box and affecting the appearance.
4 Fish farming water can not be completely replaced, the reason is that fish and aquatic weeds have been accustomed to the chemical properties of the water body in which they live for a long time, such as all water changes, the chemical properties of water may change greatly, thereby causing fish and aquatic weeds to react physiologically, which is not conducive to their normal life. The right thing to do is to keep a third or a half of the old water.
5 After the bottom of the aquarium and the aquatic weeds are all washed, the water can be injected into the box after the substrate is laid. Do not rush when filling water, avoid excessive water flow, but should slowly inject new water, and then inject the reserved old water until the predetermined amount is reached to the specified water level. Then plant the grass, and finally adjust the water temperature to the necessary height, that is, 22 ~ 24 ° C. It is best to leave it to rest for 3 to 4 days, and then raise fish after the aquatic grass has new roots. The aquarium should be covered with a glass cover to prevent dust and bacteria from falling into the polluted water body, but there should be gaps instead of all the covers to maintain air circulation inside and outside the box. The temperature in March has improved compared with February, the day time has also been extended, usually enjoy fish, to observe which species of tropical fish polyculture can be used as a foil in color, complement each other; which species of tropical fish polyculture can play a beneficial ecological effect on each other, complement each other; but also pay attention to the dynamic changes of male and female fish in the same species of fish, for the selection of broodstock for artificial breeding to make necessary preparations.
April:
In April, the earth quietly changed into new clothes. In the north, apricots, peaches and pear blossoms bloom one after another, and there is a spring scenery with green trees and flowers. Bathed in spring sunshine, full of birds and flowers, full of life. Indoor aquariums should avoid direct sunlight for a long time, otherwise, on the stems and leaves of aquatic plants, on the walls of the aquarium, and on the substrate, there will be breeding furry blue-green or blue-black low-waiting raw algae, and a box of fish will be tasteless, and even only cause a dirty feeling. In order to avoid this unpleasant phenomenon, the curtain should be closed when the weather is clear, or the sunlight that shoots into the aquarium should be blocked with green transparent paper. Generally speaking, there are not many such algae in clean and fish-less aquariums. Spring is warm and cold, the climatic conditions are very unstable, often occurs strong wind cooling or rainy cold phenomenon, but also pay great attention to maintaining the water temperature of the aquarium, especially to be vigilant against night cooling. This month is also a critical time for broodstock rearing. The newly bred generation of fish in the previous year, at this time has reached the age of sexual maturity, and after several selections in winter, the remaining individuals can be used as qualified backup broodstock, which should be carefully bred to prepare for smooth artificial breeding. When rearing broodstock, it is best for male and female to be kept in the genus Liliaceae and Cyprinidae to facilitate accurate spawning time and prevent the loss of eggs for broodstock ingestion. The stocking density of fetal fish can be slightly larger, in order to protect the newly born juvenile fish from being swallowed by broodstock, in addition to strengthening feeding to feed the broodstock, it is also necessary to have a variety of aquatic grasses with more stems and leaves or floating to provide shelter for juvenile fish.
May
Around May is the peak season for artificial breeding of tropical fish, and the Northeast may be slightly later. At this time, various bait organisms in natural water bodies began to increase, which was extremely beneficial to the cultivation of broodstock and juveniles. Among the many natural baits, fish and insects work best. Large tropical fish can be fed more water earthworms. When feeding, harmful animals caught along with fish and insects should never be brought into the aquarium. After the fish and insects are transported home, they should be poured into buckets with water before feeding the fish, and attention should be paid to the fishing away of insects that harm tropical fish such as dragon lice and their larvae. Another kind of water hydra that is not easy to fish away, it will automatically stop on the barrel or barrel wall, such as carefully taking fish worms from the surface layer and the water layer, and then carefully rinsing with clean water to feed the fish, generally will not bring the pests into the aquarium, even if a separate accidental entry into the box, it is also very easy to be found and removed during the feeding process. The artificial breeding methods of tropical fish have been described in detail in the relevant information and can be implemented by reference and improved in the light of their own practical experience. In order to meet the needs of the operation, the spawning box, temperature control equipment, water bottles (pots), aquatic weeds and other egg attachments, nylon mesh or glass sheets for isolating broodstock and fish eggs, fishing net pockets and commonly used drugs and other necessary utensils and items should be prepared in advance As in April, the aquarium should avoid direct sunlight, but the light is too dark and not conducive to the growth of aquatic plants, and it is necessary to grasp it just right. Direct sunlight for too long, will inevitably produce too much algae, seriously damage the beauty of the aquarium, its harm to fish farming, is no less than direct harm to tropical fish. Direct sunlight is too long, and it may also cause single-celled green algae in the aquarium water body to multiply in large quantities, and the water color will quickly turn green. In severe cases, too many single-celled green algae are suspended in the water, like floating clouds in the sky, constantly moving and tumbling in the aquarium, and the oxygen bubbles they produce adhere to the fish body to make the fish swim inflexibly, or the fins fester, or the skin is inflamed, causing casualties in tropical fish. The death and decay of these green algae will completely corrupt the water quality, poisoning the entire box of tropical fish. Therefore, the mastery of light must not be neglected. In addition to controlling light, keeping the water fresh is also conducive to preventing the proliferation of raw blue-green algae and single-celled green algae. Experience has shown that in very clean aquariums, these algae are generally rare. For the dirt that settles at the bottom of the box, especially in the aquarium with clean fine sand as the substrate, and the water quality is kept fresh, as long as it is not much to the extent of polluting the water quality, the removal work can not be very thorough, and a small part of the remaining water weeds can play a fertilizing role, which is conducive to maintaining the aquarium small to form a virtuous material cycle and raise tropical fish.
June:
In June, rearing and nursing work is much the same as in May, and it is also the peak season for artificial breeding of tropical fish. This month's climate is warm and stable, and if you have decided to expand the target of breeding, that is, the new fish, you can take advantage of this favorable opportunity to buy, even if you are far away, you can safely transport them to your home. In the next two or three months, the temperature difference between the north and south is not much, and they are all near the temperature range of tropical fish, which is a good time to buy fish and transport fish. On the other hand, the newly born juvenile fish last month have grown to a certain size at this time, and some already have the size and color of adult fish, which is easy to distinguish between good and bad. At the same time, buying these juvenile fish is also easier to feed than buying adult fish, and their ability to adapt to new environments is also stronger than that of adult fish. Starting in June, it is the peak season for the production of fish insects in natural waters, and if fish farmers need to feed the fish with a part of the dry feed in winter, they should also take advantage of this favorable opportunity to collect a large number of fishing insects for sun-dried storage. It is best to choose a sunny day for a few days to catch the fish worms, and wash the fresh fish worms that have just been caught at the fishing site and spread them on the reed mat to dry. If you need to transport it home and then dry it, try to shorten the transportation time as much as possible to ensure the freshness of the fish and insects, and rinse it with clean water immediately after arriving at home. The electric heater and regulator can be removed from the aquarium, wiped clean, wrapped in newspaper or soft cloth and placed in a fixed place for backup. Under the condition that the aquarium is larger, the fish farming is not too dense, and the water quality can often be maintained, and the inflator can also be removed.
July:
In July, the focus is on raising juvenile fish. For juvenile fish whose yolk sac has just disappeared and began to feed from the outside world, it is necessary to feed them with small bait organisms with strong palatability ~ ~ water. If there is no condition to go to natural waters to collect water, it is necessary to cultivate indoors. When raising juvenile fish with artificially cultivated water for a long time, be sure to feed egg yolks. Special attention should be paid to keeping the aquarium for juvenile fish clean and do not let the water quality be polluted. When sucking up dirty water at the bottom of the tank with dirt, avoid sucking the juvenile fish away at the same time. Some of the new water added to replace dirty water must be fully dried and the water temperature must be pre-adjusted to a moderate level when adding. After the juveniles have grown enough to feed on the fish worms, the amount of bait still cannot be too large. Because the young fish that have eaten enough will continue to prey on the fish worms near the mouth, but soon after swallowing, they will immediately spit out, so that the fish worms will quickly die and sink into the water and rot. In particular, pay attention not to let more dead fish and insects spend the night at the bottom of the box. Otherwise, they consume a lot of oxygen when they spoil, endangering the safety of tropical fish. When a large number of dead fish worms have been formed due to too much bait, the correct thing to do is to immediately suck them out with a soft rubber tube along with the water. Managing aquariums in summer is much easier than in winter. Due to the long daylight hours, in the case of reasonable bait and timely removal of dirt from the bottom of the box, there is no need to worry about the danger caused by the lack of oxygen in the water to the fish. Preventing the breeding of large numbers of low-grade algae, both biotic and planktonic, is an important part of the summer aquarium management effort.
August:
August is one of the easiest months to raise and manage tropical fish, when the sun is shining, the water temperature is high, the bait is abundant, and the juveniles have grown to the size of regular baits and do not have to be taken care of. However, to really raise fish well, it is not just to raise the fish and breed it artificially, on the contrary, it is only the first step to raising a good fish. This phenomenon is often found in fish shops or market trade markets, and tropical fish of the same age vary greatly in terms of size, color, posture, etc., and the price is very different. The key is all about proper breeding management. Therefore, to raise fish well, we must take advantage of the favorable conditions of the summer of seven, eight, nine or three months, in terms of the chemical indicators of water, we must try to meet them according to the most suitable range of fish; in terms of bait, we must strive to diversify, make the nutritional components complete, and also correctly bait; in terms of environmental conditions, according to the requirements of fish at different stages of growth and development, such as the strength of light, the temperature level, the number of aquatic plants, etc., in the best way, only in this way can we raise the same robust and bright as the natural world, the production is as strong, as bright, As beautiful as the tropical fish come. If there are ferocious fish-eating fish, such as map fish, etc., it is also necessary to continuously classify the size of the juvenile fish in a timely manner according to the growth of the juvenile fish, and raise them in different aquariums according to the specifications, so as to avoid the situation of "cannibalism". Measures to prevent the proliferation of algae and planktonic algae cannot be slightly relaxed or ignored.
September:
At the beginning of this month, the university and middle schools will open one after another, and fish farming students can use their free time before the start of the school to seize the "cleaning" of the aquarium. Fish farmers who do not have a rich source of bait in winter must pay close attention to the work of harvesting and making thousand fish worms. After this month, the number of fish and insects in natural waters will be greatly reduced as the climate cools. As in the middle of summer, there are still many bacteria in the air, they and dust fall into the aquarium together, they will multiply in large quantities, forming a thin oil film in the surface layer of the water, which will not only destroy the beauty of the aquarium, but also hinder the gas exchange between the water body and the air, and must be skimmed off in time with the net. The prevention method is to cover the aquarium. In order to continuously improve and improve fish farming technology, it is necessary to do a good job of fish farming records, including: water temperature, pH value, hardness, bait type and quantity, fish activity and feeding, whether there is residual bait, etc., in artificial breeding, pay more attention to observe broodstock estrus, chase, spawning, hatching, as well as the development of juvenile fish and juvenile fish, growth, feeding reaction to light, survival rate, etc., and do a detailed description and record. These data sometimes play an unexpected role in summarizing the experience and lessons of fish farming. It is more ideal to link the main dynamics of fish (such as onset, maturation, reproduction, etc.) and the surrounding phenological phenomena (such as flowering and falling, temperature rise and fall, frog song and insect flying, rain and sunny changes, etc.). Fish farming records should be carried out continuously.
October:
In October, the climate in most areas gradually turned from hot to cool, especially in the northern region, and the end of this month is approaching the beginning of winter. The days became shorter, and the lights began to be used to supplement the aquarium to ensure that the daily light time could be maintained for 12 to 14 hours. Where the temperature drops below 20 °C, warming measures should also be used to maintain the water temperature of the aquarium at 20 to 24 °C without causing violent fluctuations. When conditions permit, the water temperature at night should be lowered by 1.5 to 2 degrees compared with the daytime, so that tropical fish are closer to the conditions in nature. According to the above requirements, in areas where the climate has become cooler and colder, fish farmers must not forget to make a commissioning inspection of lighting, electric heaters, regulators, pumps and other electrical appliances in advance, and some also need to purchase spare parts to ensure the safe wintering of tropical fish. It is best to use an electric lamp with a variable resistance for lighting, so that the light gradually changes from weak to strong or curved to weak, without suddenly extinguishing or suddenly brightening, which adversely affects the fish. Given the lack of light in winter, aquatic plants do not have as much benefits to tropical fish as they do in summer: aquatic plants only photosynthesize (absorb carbon dioxide to produce oxygen) when the light is strong, and when the light is weakened to a certain extent or dark, it instead performs respiration (consuming oxygen to produce carbon dioxide). Therefore, in the winter when the sunshine time is short, the aquatic grass in the aquarium should be appropriately sparse, and the excess part can be discarded or transferred to another container for later selection. All species of tropical juvenile fish that are newly bred in the spring of that year, after several months of growth and development, have reached the age of sexual maturity at this time, and at least have adult fish: the shape and color should be combined with the need for safe wintering, and the first selection will be made, the color and shape. Individuals in good shape are reserved for further viewing and artificial breeding in the spring of the following year, eliminating those who are small and thin and have a defective appearance. After the water weeds are sparse, the number is reduced, so that their absorption capacity of nitrogen-containing nutrient salts formed by the decomposition of the bait and fish excrement in the aquarium, mainly the nitrate tooth mouth nitrite, is also weakened. In order to avoid water quality pollution, in addition to using a soft hose every day to suck out the dirt at the bottom of the box and replenish the same amount of new water, it is also necessary to strengthen the local water replacement work of the aquarium, that is, regularly use a rubber hose to pump away the slightly polluted and slightly muddy water at the bottom of the aquarium such as residual bait and fish manure, and at the same time inject the same amount of new water from the water reservoir. Even if the ice tank is large and there are not many fish farming, this local water change work should be at least 1 to 2 times a week, and the amount of water should not be changed too much each time. Rotten aquatic grass stems and leaves, dead fish should be found at any time to remove at any time. The oily film formed on the surface of the water should also be skimmed off with a net at any time. For the algae attached to the wall glass of the box, it should be wiped off frequently with a clean gauze cloth.
November:
In November, the main management and maintenance work was the same as the previous month. When necessary, the fish bred in the current year should be selected for a second time, leaving the best and the worst. The "necessary" here means that the volume of the aquarium is too small compared to the number of currently farmed tropical fish, which affects the safe overwintering. The fish weeded out this time tend to be of decent quality and can be reared in an aquarium or other appropriate treatment. If it is found that hot fish float on the surface of the water more frequently, and the body is tilted forward and upward, or even swallowed the air on the surface of the water in a vertical state, it means that the dissolved oxygen in the aquarium is too low, and the cause should be immediately identified, whether the water quality is corrupt or there are too many fish or aquatic grasses, and measures such as changing water or sparse fish and grass are taken respectively. In November, quite a few areas have entered the winter, the temperature and water temperature have dropped very low, and some places will freeze. At this time, as the best natural food for tropical fish ~ fish insects, the number of natural waters such as ponds, ditches, lakes and so on has decreased sharply, which is not a treasure that most tropical fish lovers can easily obtain, not to mention, to meet the needs of fish farming. From November until the following spring, before the emergence of fish insects in large numbers, the successful solution of the problem of feeding tropical fish should be considered as a regular and important task for fish farmers, which is directly related to the success or failure of fish farming. At this time, it is possible to feed a variety of water earthworms that are easier to obtain. These oligochaete animals mostly lurk in ponds, ditches and other organically rich sediments in winter, and can be dug up and washed to feed to fish. In order to prevent it from drilling into the gravel at the bottom of the aquarium, it is not easy for tropical fish to eat, you can first divide a ping-pong ball in half along the adhesive line, put the water earthworm into it and then close it into a ball, use a thick needle to poke many small holes in the sphere, suspend the ball in the aquarium, when the water earthworm continues to protrude out of the ball through the small hole, it can be eaten smoothly by the tropical fish. It can also be fed dried fish worms, synthetic pellets or artificial baits such as fresh fish and shrimp meat crumbs. However, with the exception of peacock fish, swordtails, black marigolds and some carps, which are accustomed to eating such lifeless and inactive artificial baits, a small number of more precious tropical fish cannot immediately transition from live bait to adaptation to such baits, but must be "trained" in advance. The specific method is to stop feeding for 2 to 3 days and give artificial bait when these "squeamish" fish are hungry. At first, they will swim rapidly from all sides of the aquarium to the bait point, but do not feed, only a few circles around the bait and swim away, at this time the artificial bait ~ fish away, and a small number of fish and insects to fill them, but do not let them eat. Hungry them for a period of time and then throw artificial bait, and put in a few fish that can eat this bait to take the lead in feeding, such as these "squeamish" fish still do not feed, fish farmers should be patient, and can give a small number of fish worms to fill the hunger. Repeated so many times, hunger is inevitably forcing them to eat artificial food. At the beginning, there may be a situation where the bait is swallowed and then spit out, which is a precursor to the success of the "training", the fish farmers must not be discouraged, and after a few more times, they will be smoother and more accustomed to eating artificial bait. It should be noted that there are also a few precious tropical fish that are not eaten with any other bait except live bait. In winter, even water earthworms are not easy to obtain natural food, and it is not a pleasure to often go to the countryside to collect, so it is necessary to pay attention to the long-term preservation of water earthworms. The general practice is to wrap them in a damp cloth and store them in a low temperature environment. Although this method is simple and easy, it is difficult to store for more than a week, which is not very ideal. A better way is to keep the water earthworm in a shallow dish, keep the water depth of 0.5 to 1.0 cm, and place it in a low temperature environment with a temperature of 2 to 6 ° C, and change the water once a day, rinse it with clean water when changing the water, so that it can be stored for two or three weeks. Another point to note is that after using up a part of the water earthworm, then save the newly dug up, rather than mixing the newly dug up with the original unused preservation, this is because the individual vitality of the person who has been stored for a long time is poor, and it is easy to die and aggravate the loss. Throughout the winter, the water temperature in the fish aquarium should not rise too high, on the contrary, it is still kept at a slightly lower level, that is, it is best to stabilize in the range of 22 ~ 24 ° C. In this water temperature range, most species of tropical fish can grow and develop normally, and when artificial breeding is carried out in the spring of the following year, and then slightly increase the water temperature, it can better play its role in stimulating broodstock excitement and estrus.
December:
The density of fish and aquatic weeds in the aquarium has reached a more stable and reasonable level after the adjustment of the first two months, so the management and maintenance work this month is still to maintain the four items of fresh water quality, moderate light, suitable water temperature and appropriate bait. In winter, the activity of tropical fish is weakened, and the number of baits can be changed from twice a day to daily to once a day, and it is reasonable to bait in the morning. Winter, especially early winter has passed, but there is still a long period of time before the end of winter and spring, and special attention should always be paid to keeping the water quality of the aquarium fresh. This is because: winter has its own natural characteristics, the days are short, especially in the cold areas of the north, the window glass will be full of ice flowers, even the short sunlight is blocked out of the window, and the indoor light is very dark. Because the indoor temperature in these places is generally high, the main difficulty in raising tropical fish is not cooling, but insufficient sunlight. In such a case, the beneficial effect of aquatic grass on tropical fish is much weaker than in summer, if you do not pay special attention to removing dirt and the remnants of the perpetual grass, do not pay attention to replacing the dirty water at the bottom of the tank with new water, to maintain the benign balance of biology ~ ~ chemistry in the aquarium, it is impossible to keep the water fresh. This is why the winter aquarium needs to be partially changed 1 to 2 times a week. However, the amount of water exchanged for the aquarium each time should not be too much, and it is generally advisable not to exceed one-fifth of the total water volume, and may be increased or decreased as appropriate. Experienced tropical fish lovers know that the water in the fish aquarium can be kept fresh with the above-mentioned local water exchange method, so that if the water is not completely changed for several months or even years, it will become yellowish and transparent "old water". In this "old water", there are almost no single-celled algae, ciliates and any other protozoa, and dead fish and residual bait can be in the "old water" for 2 to 3 days without spoilage. Tropical fish living in old water are not easy to get sick, even if they are suffering from parasites, mold, bacteria and other parasitic or mechanical trauma, if properly treated in old water, it is easier to restore health.