? Observe the belly of guppies. If the belly is translucent, you can even see that the color of the viscera inside the belly is female guppies. If the belly is white and you can't see the color inside the belly, it's a male guppy. It can also be distinguished by looking at the tail of the fish. The tail of the male guppy is longer and has bright patterns, while the tail of the female guppy is much more monotonous. The female peacock has a short, fan-shaped tail. When young, the tail of the male guppy will be colored first, which is one of the ways to distinguish the male and female guppies when they are young.
Normally, male and female guppies will not fight when they are mixed together. But if the tank is too small, the two guppies feel that the space is too small, or the fish food is not enough, then there may be a fight between the male and female guppies. Another
situation is that the female guppy will become a little impetuous during the period of waiting for delivery. At this time, if the fish tank is too small to make the female guppy feel that the living space is narrow, there may be a "fight" incident. Therefore, it is better to keep pregnant female fish alone. Different species or patterns can also be one of the reasons why guppies fight. If two fish often fight or even bite, they should be separated from each other to avoid hurting each other or causing death.