, the fish tank of 20 centimeters suits to raise small fish only, but the bodily form of small fish is different also, a bit bigger water tiger can raise only, the word of bream can raise two, the light fish raises much, can raise a dozen or so. If too many fish are raised, the high feeding density will cause insufficient dissolved oxygen in the water body, resulting in anoxia of fish, and this is not good for maintaining water quality, which is very harmful to the health of fish.
in a small fish tank 1. Pay attention to the density: When raising fish in a small fish tank, you must pay attention to the density, because the smaller the fish tank, the less water it contains, and the lower the oxygen content. If the breeding density is too high, the fish will easily lack oxygen, and it is easy to scratch when swimming, which will increase the risk of injury. It is very harmful to the health of fish.
2. Regular feeding: Any fish should be fed regularly, according to the feeding habits of the fish, choose the appropriate feed, and a small number of times, about two or three times a day. It should be noted that because there is less water in the small fish tank, the water quality is not good to maintain, so the amount of food must be well controlled, otherwise it is easy to spoil the water.
3. Change the water frequently: Changing the water is also a platitudinous topic. Whether it is a big fish tank or a small fish tank, the water should be changed every once in a while, so as to avoid the deterioration of the water quality, which is harmful to the fish. The water quality of the small fish tank is not easy to maintain, so the water should be changed more frequently, but not more each time.
