Scavengers suck fish when they are hungry, but the situation of small scavengers sucking fish is not particularly serious, because they are small in size, and the moss and algae in the fish tank are enough for them to eat, so there will be no hunger. Large scavengers will eat more, and they will prefer to eat some animal feed when they are adults. If the breeders don't provide them with enough food, they will constantly attack the weak or sick fish at night, which will make the fish unable to rest and live normally. After a long time, the fish will die. At this time, the scavenger will eat the dead fish directly to satisfy his appetite.

Scavengers are fish living at the bottom, so it is difficult to grab food at ordinary times. Young scavengers don't need to feed them specially, because there are enough moss and algae in the fish tank to eat. However, in adulthood, they eat a lot, and they can't meet their needs only by relying on moss and algae. Breeders need to feed them separately to ensure their food is sufficient.

Breeders can buy some sinking feed for them, which can prevent other fish from grabbing food. If you want to feed some animal feed, you can buy a long clip, hold the feed and put it under the water, and then take the clip up after the scavenger finishes eating it. This can also prevent other fish from robbing them of their food.