Scavenger fish starved to death because the fish tank was too clean and there was no food supply. Low temperature and large temperature difference are also the reasons why scavenger fish can't survive. Salt and medicine can't be added to the fish tank. Secondly, scavenger fish is prone to water mold, and it is not easy to find it, which will lead to scavenger fish wasting and even death.

The reason why scavenger fish can't survive.

Scavenger fish couldn't survive because the fish tank was too clean, and eventually scavenger fish starved to death, while scavenger fish usually grew up eating moss, feed residue and other filth. Without food supply, he will die.

Scavenger fish doesn't require high water quality, but it is afraid of low temperature and can't bear extremely high temperature difference. And feed scavenger fish, not only can't add salt, also can't use medicine, otherwise it will lead to scavenger fish can't stand it.

Secondly, scavenger fish is prone to water mold, which is not easy to find. When scavenger fish's abdomen appears white mucus or whitish, he will find that scavenger fish gradually loses weight until he dies, and it is easy to infect other fish.