When many fish friends just started raising fish, they thought it was troublesome to clean the fish tank, so they brought home a scavenger. Many vendors would also use the scavenger as an addition when selling ornamental fish, and advised the fish friends that the scavenger is good at eating garbage, which can save a lot of things and maintain the water quality. However, I didn't realize how naive I was until I raised it for a period of time. I simply threw it into the river. Scavengers without natural enemies directly occupied the living space of native fish and became a bully in the river.
Is the scavenger poisonous?
Scavengers are a kind of very common heterotypic fish. Their price is very cheap, so many friends who want to raise tool fish will choose them. Scavengers are non-toxic fish. They feed on algae and plankton in the water. Many people think they will clean up fish feces. This is a wrong understanding. In the aquarium, scavengers may work hard at first, but over time they will grab food with ornamental fish. After all, who eats garbage when there is food. Although scavengers are non-toxic fish, basically no one wants to eat them.
Many bones and poor meat quality
China has a lot of food. Even crayfish, once an invasive species, can be eaten into artificial breeding varieties, and the supply is in short supply in the market. Why are scavengers who are also invasive species so unpopular? In fact, the most fundamental reason is that it's too bad to eat. The scavenger is an exoskeleton fish with more bones and less meat. Even if he eats it, he can't eat anything. Moreover, the meat quality of the scavenger is very rough, which is much worse than that of ordinary fish.
Low nutritional value
Even if it's bad to eat, if the scavenger's nutritional value is high, I believe some people who love health preservation will welcome them. But where can the nutritional value of fish that eat garbage every day be higher? It may be a big difference compared with ordinary edible fish. Who will accept such fish?
Bacteria and parasites
In fact, there is another important reason why scavenger fish are not liked by diners, that is, they are too dirty. Scavengers who feed on garbage in the water have a large number of bacteria or parasites in their abdominal cavity. If they are not handled well in the cooking process, they are likely to be caught. Such unsanitary fish is not suitable for everyone to eat. If you have curiosity hunting psychology, you must be careful when trying.