The world cannot be without oxygen. Everything is inseparable from oxygen. Of course fish too. There is also oxygen in the water, but they are all dissolved. Ornamental fish do not use their lungs to inhale and exhale like people, they use gills, relying on a door to inhale and exhale, and the special structure of the gills will drain the water and filter out oxygen for use. The sudden death of fish is partly due to their "lack of oxygen"! Let's first talk about what ornamental fish usually look like when they lack oxygen.
<h1 class= "pgc-h-center-line" > rushed to the surface of the water to "drink water"</h1>
Some pelagic fish will run to the surface of the water to inhale when they are deprived of oxygen. I remember when I was a child, I used to raise goldfish, and when I was starved of oxygen, I would run to the surface of the water and breathe heavily, and I thought the fish were "drinking water". But they just make a similar action of drinking water, in fact, looking for an environment with a higher oxygen content to breathe. A lot of fish do. As soon as they lack oxygen, they will immediately swim to the surface of the water, mouth to water, as if they are drinking water.
However, some benthic fish do not make such a move, so it is not very accurate to distinguish by this method.
<h1 class = "pgc-h-center-line" > shortness of breath and lighter body color</h1>
People will be out of breath after just running, their hearts will beat fast, and their breathing rate will rise. Fish in the absence of oxygen will be very fast in the gills of the gills, in fact, they are in a severe lack of oxygen, the gills of the gills open and close quickly because they are trying to inhale more water, filtering out more air. This is mainly used to judge demersal fish. I grabbed a loach while I was in the wild, and it didn't take long for it to breathe in the box, first because of lack of oxygen and second because of panic.
And generally in the absence of oxygen, the original good color of the ornamental fish will suddenly become lighter, coupled with shortness of breath, from which it can be inferred that this must be a lack of oxygen.
< h1 class="pgc-h-center-line" >Why are ornamental fish hypoxic? </h1>
There is only one cause of hypoxia: the oxygen content in the water is too low! However, there are many reasons why the oxygen content of water is too low, usually for the following reasons.
1. Suddenly doubling the number of ornamental fish. If you originally only have a few fish in your fish tank, the amount of dissolved oxygen in the water is enough to supply the small fish to breathe and nitrify the establishment of a bacterial system. But if one day you pick a lot of fish or buy a lot of fish, all at once into the tank, the originally sufficient oxygen has now suddenly become a luxury, oxygen content can not supply so many fish to breathe at the same time, there will be a collective lack of oxygen, and even the nitrification bacteria system collapses.
2. The water body is too small. The amount of dissolved oxygen in water is limited, and if there is no oxygen source, once the oxygen is all used up, it is gone. When the water body is very small, there is no aquatic algae in the fish tank, and there is no water circulation system in the fish tank, raising a few fish, I believe that soon these fish will immediately appear hypoxia phenomenon.
The above two reasons are very common, and many people raise fish for lack of oxygen because of these two reasons. So, how do you deal with it?
<h1 class="pgc-h-center-line" > how to deal with the lack of oxygen in ornamental fish</h1>
Ornamental fish lack of oxygen, the first thing you have to think of is to quickly plug the aeration pump into the oxygen. This is the most direct and effective way. If the water body of the fish tank is small, change the larger environment to reduce the oxygen consumption rate. In the case of too much density of ornamental fish, it is recommended to divide the tank, otherwise it will not be possible to eradicate the sequelae.
And you must prepare a rechargeable aeration pump. Because it is inevitable that there will be a power outage at home. Once the power is cut off, the aeration facility can no longer operate, and the rechargeable aeration pump can be used for some purpose.
Reasonable and effective fish farming and preparation of emergency equipment can greatly reduce the probability of death of ornamental fish due to lack of oxygen.
If you also like to raise ornamental fish, you may wish to start pointing out a point of attention, all you need to know about fish farming is here.