the water level of the fish tank? If the structure of the fish tank is relatively simple, it is still very simple to adjust the water level, just scoop out the water inside, or add water directly. If it is an integrated aquarium, it is a little more complicated to change the water level. Some of them have the function of adjusting the water level. If there is no such function, you need to remove the cover plate of the fish tank, and then saw off a section of the overflow pipe, so as to reduce the water level.
at low water level? 1. Goldfish: Goldfish is a common small fish, which is not suitable for raising at high water level. Usually, the water depth is about 30 centimeters. There are many kinds of this kind of fish, the most common one is grass gold, which does not require high water quality, and its feeding habits are relatively miscellaneous, so it is very easy to raise.
2. Oryzias latipes: Oryzias latipes is a kind of ornithopod fish, which lives in the middle and upper layers of the water body and likes still water and slow-flowing waters. This fish likes to eat plankton and insect larvae, so it can improve environmental hygiene, and because of its strong adaptability, it is easier to raise.
3. Tangyu: Tangyu, also known as Baiyun Jinsi, is a unique fish species in China and a second-class protected animal. It has been extinct in the wild, but it is also widely raised at present. Its temperament is lively, although it lives in the south, but it also has good cold tolerance, suitable for survival in waters with low water level.