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Speaking of this native fish, their wild species, which are china's second-class protected animals, only the small fry raised in captivity are used as ornamental fish and enter the tanks of many aquarists.
I believe that most of the aquarists have raised this native fish, but there are not many who can raise them, and moreover, the individuals of this native fish are very large and can easily grow to more than one meter.
When they were young, they looked particularly ugly, and were raised by many aquarists as cold-water fish or tool fish, and only when they grew up, their body color would be exceptionally gorgeous, and they were called Asian mermaids.
They also have a peculiar name, the scientific name is rouge, and it is often called smooth sailing in the ornamental fish world.
<h1 class = "pgc-h-arrow-right" > a rouge that looks ugly as a child and turns around gorgeously when it grows up</h1>
Rouge fish is a rare freshwater fish species unique to China, belongs to the national second-level protected animals, and will have their traces in the Yangtze River and Minjiang River in China.
The rouge fish are strangely shaped, colorful, colorful, elegant and quiet in their swimming posture and habits, they were once the darlings of the fish watching world, and we can still see their juvenile fish in aquarium shops.
When the cochineal is in the juvenile stage, the body is a brown color, and there are three brownish-black transverse stripes on the side of the body, if you use four words to describe them, it is black and not slippery, except for the towering dorsal fin, there is no value to appreciate.
In adult rouge, the three black longitudinal stripes of juvenile fish will gradually disappear and be replaced by a black stripe that runs through the whole body, and their body color has also undergone earth-shaking changes, because their whole body has become red, especially the two cheeks pink, like the rouge of a girl smeared on the cheeks, so it is named cochineal.
They belong to the order Teleostis, Cyprinids, suborder, cochineal, and carp are distant relatives, and cochineal is the only member of the subordinaridae distributed in China so far, belonging to the endemic species of our country.
<h1 class= "pgc-h-arrow-right" > basic life habits: hyperoxin fish, wide temperature fish, omnivorous, temperament is too docile</h1>
Rouge fish belong to the benthic fish, prefer quiet, do not like too violent rapids, juvenile fish live in the middle and lower reaches of the river in the slow water area, the action is relatively slow, mainly eat a variety of aquatic insects, occasionally eat plant detritus, adult fish more inhabit the upper reaches of the river near the bottom waters, like in the clear water, dissolved oxygen is sufficient rock beach benthic environment.
Cochineals have migratory habits and do not grow very slowly in the wild, but they mature late, reaching sexual maturity at the age of five to six years, and the largest individual in the wild can reach about one meter and five.
A female rouge fish has about 70,000 to 150,000 eggs in her arms, and when the water temperature rises above 15 degrees, they will lay eggs and reproduce.
If the water temperature is kept between 15 and 18 degrees, it takes 7 to 8 days for the cochineal to fertilize the eggs before they can hatch.
The newly hatched juveniles will take another 6 to 7 days before they swim and feed.
Because the embryonic development rate of the cochineal fish is too slow and too slow, the probability of death of its offspring is significantly increased.
Fish eggs or small fry that are not swimming are easily eaten by various other fish, so the number of cochineal fish in the wild is actually not optimistic, and the number of captive culture is increasing year by year.
Therefore, the current use of artificial breeding and stocking methods has become an effective remedy for breeding the resources of the Yangtze River cochineal, and when the juvenile fish grow up and the ability to resist environmental interference reaches a certain level, they are released back into the Yangtze River.
The suitable temperature range of cochineal is actually very wide, but the most suitable water temperature for their growth, roughly 18 to 32 degrees, below 15 degrees, they will eat very little, and then lower, may not eat at all, this and goldfish, carp habits are similar.
< h1 class = "pgc-h-arrow-right" > the yield of artificial breeding is very large, why can't it be fed in the fish tank? </h1>
The artificial reproduction of cochineal fish is very large, so that their price is extremely cheap, not valued by wholesalers or fish dealers, as ornamental fish, many aquarists only treat them as a tool fish, hoping that they can eat part of the fish tank residue or algae.
And you may like it when you first see their unique body shape, and here's one more thing:
The bad is that it is bad, on the name of smooth sailing, I really don't know which talent this is at the beginning, patted his thigh, came up with such a name, and instantly sent the rouge fish into the fish tank...
Because the cochineal fish belongs to the benthic fish, in addition to excessive hunger, they are rarely fed on algae, especially juvenile fish, prefer red worms or red worms, fish worms and other live food, and another is that their personality is extremely docile, living at the bottom of the fish tank, the ability to grab food is very poor, many aquarists will not go to prepare food for them alone, and there is no ornamentality to raise them alone in a fish tank, most of which can only appear as fish in the fish tank.
There is a more important reason, that is, the longer the lifespan and the longer the sexual maturity of the fish, their juvenile stage will also be longer, and the small fry will be in a state of starvation for a long time, and they will soon die of enteritis.
If we look closely, we will notice that most of the rouge fry purchased are skin-and-bone type, so they cannot be fed at all.
Unless there is a very patient way of raising and feeding, as well as an adequate supply of fish food and an environment of individual rearing, the cochineal can gradually recover its physique and then begin to accelerate its growth.
Another problem is derived from the high dissolved oxygen of the cochineal, and is not resistant to high temperature environment, this is not tolerant to high temperature, many aquarists have also mentioned, that is, cochineal and colorful polyculture, there is no problem at a high temperature of 32 degrees.
Yes, the cochineal has the highest heat tolerance and can even reach more than 35 degrees.
However, they are native fish after all, they need to gradually adapt according to the temperature of the wild environment, if they are suddenly put into a high temperature environment, coupled with the lack of oxygen problems of rising water temperature, especially at the bottom of the water, the oxygen content is lower, they will gradually lose their appetite, and they will say goodbye.
<h1 class = "pgc-h-arrow-right" > do not raise them in tanks if they do not provide the necessary conditions for cochineal</h1>
From this we learned that the cochineal fish is a low-habitat fish that is extremely easy to grab food, and the juvenile fish like to eat live, and are not suitable for polyculture with the ferocious ornamental fish, they are not purely algae-based tool fish, the personality is relatively quiet, not lively and active, the appreciation value is not very high, and the fish tank can not be filled after growing up...
So, if we can't provide them with a good breeding environment, then we don't have to raise them in the fish tank, but let them go back to nature and be their Asian mermaids with peace of mind.
I am a veteran of fish farming, more ornamental fish problems please pay attention, thank you!