The reason why goldfish can't be eaten is because there may be some harmful substances in the feed fed in the process of raising goldfish. Some drugs used for ornamental fish are harmful to human body and are not allowed to be used in edible fish, so don't eat them.

Reasons why goldfish can't eat:

1, goldfish is actually a variety of crucian carp, which is the product of genetic variation. The reason why people can't eat it is because people are worried about species with genetic mutations.

2. Fish food is very rich, but goldfish is too small to meet people's dietary requirements, and its ornamental value is far greater than its edible value.

Secondly, it is also because the ornamental value and price of goldfish are expensive. A goldfish costs thousands of dollars, and most people don't eat it.

3. Goldfish is an ornamental fish, which is cultivated for viewing, not for eating. And as an ornamental fish, many people will feed some harmful substances to the fish, which is harmful to people's health, so don't eat or eat it.

4. Goldfish belongs to the auspicious national quintessence in the sense of geomantic omen and is endowed with beautiful aura. Moreover, people have always been caring, so eating it is psychologically, morally and emotionally unacceptable.