goldfish can live if their eyes are eaten by other fish, because their eyes are not very clear, which is similar to our human myopia. So they feed on their sense of smell and other senses. However, eyes are prone to infection after being eaten, so breeders need to ensure that the water quality they live in is clean and refreshing, so as to avoid bacteria and parasites taking advantage of it.

Although the eyes are not very helpful to them, they may collide in future activities. Moreover, after they have no eyes, they may be bullied by other fish and eventually die.

goldfish can be mixed with other fish because they have low requirements for the environment, strong adaptability and mild personality. Breeders can choose to mix with fish with the same habits, such as tiger skin fish, lamp fish, seven-star swordfish, brocade carp and so on. These kinds of fish are not fierce in character. Although some of them are lively, they will not take the initiative to attack other fish. They are very suitable for mixed breeding with goldfish.

Although goldfish have low requirements for the environment, their size is too large, and breeders should ensure that they have sufficient space when they are mixed. In addition, different fish like different foods, and breeders can feed food according to the habits of fish.