The size of guppies is relatively small. Generally speaking, the length of male fish is 3 to 4 centimeters, and the length of female fish is 5 to 6 centimeters. The length of the 30 cm tank is almost 5 to 10 times their body length. A 30cm tank is not very small for them. So it's no problem to raise guppies in a 30cm tank. But if the number of fish is too large, it is easy to cause fish hypoxia, which is not conducive to their normal life. Therefore, when using 30 cm fish tank to raise, we should also control the breeding density.
In addition, fish in the breeding season should not be raised in such small tanks. Because the reproductive capacity of guppies is very strong, it produces a large number of small fry, 30 cm tank capacity can not meet their space needs. But guppies in other periods can be raised in small tanks.
How many fish can be kept in the fish tank depends on the size of the fish. Such a small tank of 30 centimeters can not raise too many fish, otherwise the fish are prone to hypoxia. If the body length of guppies is less than 3 centimeters, there is basically no problem in breeding 30 guppies. If you want more space for fish, you can raise about 20. If you want to raise better, the number of fish should be controlled within 10. If there are fewer, the ornamental value of the fish will be affected. Therefore, 10 guppies are the best number to breed. Because of the limited amount of water in the fish tank, the speed of water pollution is faster. In the process of feeding, attention should also be paid to changing water frequently to ensure clean water quality.
