Parrot fish don't eat aquatic plants, but they will bite and damage them. Parrot fish are omnivores. Their mouths are strong and sharp, making it easy for them to destroy aquatic plants. Besides, parrot fish are relatively large in size and quite strong. They move very rapidly in the water, and might uproot the aquatic plants, ruining the landscape in the fish tank.
Parrot fish are extremely sensitive to temperature. The suitable water temperature ranges from 26℃ to 27℃. If the water temperature is too low or fluctuates violently, the body color of parrot fish will fade, and they may even develop black stripes or spots. Therefore, maintaining the water temperature within the appropriate range is the key to keeping parrot fish's body color bright and their vitality high.
Parrot fish have an omnivorous diet. They can eat artificial bait, flakes, pellets, bloodworms, brine shrimp, water fleas, etc. They can be fed two to three times a day. They prefer fresh water, and it's advisable to change about one - fifth of the water every day. Parrot fish can be raised together with some gentle large - sized fish. However, among themselves, they may fight due to territorial awareness.