Zebrafish can be raised in naked tanks. But it belongs to ornamental fish, and it will be more monotonous if it is raised in a naked tank. Moreover, the ecological environment of the bare tank is relatively simple, and it is difficult to cultivate nitrifying bacteria. Like zebrafish, which usually do not need oxygen, it is better to have nitrifying bacteria in the water to supply oxygen, so that it can grow better.
Nitrifying bacteria can also decompose fish feces, producing nitrogen and phosphorus, and aquatic plants can absorb these substances. If there are aquatic plants in the fish tank, they can decompose nitrogen and phosphorus, thus purifying the water body. Therefore, it is not recommended to raise zebrafish in naked tanks.
The survival ability of zebrafish is very strong, and it can be mixed with other fish. And it is very adaptable, in other fish living together, can accommodate their environmental conditions. Zebrafish are gentle and don't have to worry about fighting. It is better to choose middle or bottom fish for polyculture. Because zebrafish often move in the upper layer of the water, they can avoid disturbing each other. Zebrafish swim very fast, so the number of zebrafish should not be too large when mixed culture. Otherwise, when feeding food, other fish will not be able to grab food.
