1. Competing for territory: Guppies bite guppies may be competing for territory, and they are not aware of territory, but if the breeding density is too high, they will fight because of insufficient space.
2. Competing for a mate: Guppies may also be competing for a mate when they bite guppies. Although their personalities are mild, they will become a little grumpy when they are in heat. If there are fewer female fish in the fish tank, the male fish will fight with each other, and the winner can get the female fish.
3. Fighting for food: Guppies may also be fighting for food when they bite guppies. If the food in the fish tank is scarce, they will fight for food.
2. How to avoid guppy biting guppy1. Keep plenty of space: Many breeders think guppy is small, so they don't need much space for activities. However, if they live in too little space, they are prone to fight. If breeders want to avoid them fighting, they must ensure that they have enough living space.
2. Keep food adequate: Lack of food is also one of the factors of guppy fighting. If breeders want to avoid biting each other, it is best to ensure adequate feeding when feeding food.