Moss rat fish do not eat, generally there are only a few situations, buy poor quality fish, already hungry enough to eat; unsuitable for the new environment; internal parasite infection (the probability is relatively low); the feed does not sink to the bottom, Ratfish are lower-level fish. When feeding, it is best to let the food sink to the bottom. There must be enough oxygen for aquaculture. As a bottom-dwelling fish, it also consumes a lot of oxygen. The algae at the bottom of the fish tank are basically eaten, but the higher the wall of the fish tank, the less they eat.

The moss rat fish is an omnivorous ornamental fish, under normal circumstances Feeding is relatively easy, just give them clean water. In the case of moss rat fish kept in the aquarium, they will eat the moss or leftover food in the aquarium and are ornamental fish that can help clean the aquarium.