Methods to prevent mini parrot fish from eating small fish:

1. Feed regularly. Breeders need to ensure sufficient feed during the feeding process to prevent parrot fish from attacking other fish due to hunger.

2. Checks and balances. In addition, breeders can mix other aggressive and territorial fish, such as Luohan fish. Try to keep the size of the two fish the same, or make the mini parrot fish slightly larger to achieve a balance effect.

3. Stratified polyculture. In addition, mini parrot fish like to live at the bottom of the fish tank. In order to prevent it from attacking small fish, breeders can choose fish that live in the upper reaches of the fish tank to effectively prevent them from interacting and fighting.

4. Physical isolation. Set up an isolation splint to isolate the parrot fish from the small fish.

5. Protect small fish. Set up a shelter to give small fish a place to hide.