Under normal circumstances, colorful immortals will not eat their own small fish. When they breed, colorful immortals must raise two big fish or one with small fish, because after the fish eggs become small fish, they will swim to the big fish and eat a substance secreted by the big fish. We usually say this is "sucking milk".
But in several cases, big fish will eat their own small fish.
1, first spawning or second spawning. This is because I am the first time to be a fish parent, and I am inexperienced. Laying eggs will be better in the next few years.
2. Don't be frightened. The big fish must not be frightened when waiting for the small fish.
3. The water quality is seriously polluted. Although Caixian should try not to change water during spawning, it can be changed less if necessary. Good water quality can be maintained, or it can usually be maintained through filters.