goldfish don't have high IQ, and they won't know their owners when they first buy them home. However, if the breeder regularly feeds the food and feeds them regularly, they will know the owner after feeding for a long time. Their IQ is relatively low, and they can only distinguish their owners by sound, smell and actions. When goldfish know their master, when the master approaches them, there will be many excited movements. Such as fast rolling, fast swimming and sticking to the cylinder wall.

Although goldfish can interact with their owners, because they can only move in the fish tank, their interaction with their owners is limited to simple activities.

1. Timing and quantitative feeding: If the breeder wants goldfish to interact with himself, he needs to feed them regularly and quantitatively. Let them develop a regular eating habit, which can better cultivate their conditioned reflex. If goldfish are no longer afraid of their owners, breeders can also feed them with food in their hands, which will make them more interactive.

2, companionship: Although goldfish mostly rely on conditioned reflex, the smell and sound of breeders will make them feel familiar. Therefore, it is best for breeders to talk to them more when feeding, or watch them eat silently, so that they can get familiar with their owners quickly.