The reproductive capacity of guppy is very strong, each reproduction can produce 60 to 100 offspring. If they are domesticated, there may be too many of them. When the fish are young, it is no problem to put them in a fish tank. But as they grow up, the space in the tank becomes very crowded. In order to ensure that the fish will not be anoxic and unable to swim, it is best to raise them in separate tanks. When dividing tanks, we should not only control the breeding density of each tank, but also separate male and female. Otherwise, when they grow up and enter the breeding period, they will still reproduce, and the number of fish will increase.
Mature guppies can be released, but it is not recommended to release too young guppies. Too young guppies have poor adaptability to the environment. If they are placed in the wild, the survival rate will be very low. And its size is also small, weak defense capabilities. Even if they can adapt to the environment, they are easily eaten by other carnivorous fish. Generally speaking, it is better to release the fish after it grows to 3 to 4 centimeters. At this time, the guppy's environmental requirements are not so high, and its adaptability is strong, such as rivers, lakes and other waters, it can survive.