If the fish tank is too clean and there is no moss or algae, the scavenger may eat some fish feces or food residues, and some will also eat some creatures. If food is too scarce and scavengers are always in a state of not having enough to eat, they will eat some fish eggs, and may also eat some smaller fish. Scavengers have the habit of sucking fish. If some fish are weak, scavengers will keep sucking mucus from their body surface, causing wounds and infections. Finally, the fish will become dying. At this time, scavengers will quickly eat the bodies of the fish. If breeders want to prevent them from attacking other fish, it is best to feed them regularly. They don't have high requirements for food, so long as it is food that fish can eat, they can be fed.

Scavengers don't need to feed when they are young, because they eat little when they are young, and the microorganisms, moss and algae in the fish tank are enough for them to eat, so breeders don't need to feed them alone.

If you are an adult scavenger, it is best to feed food specially. Because they eat more as adults and prefer meat, if they can't eat meat for a long time, they will attack other fish in the fish tank.