Lanshou goldfish and grass goldfish should not be raised together. Although they are both goldfish, different species, habits and body shapes are also different. First of all, their personalities are different. Grass goldfish are lively and aggressive. Lanshou goldfish is gentle in character and clumsy in activities, so they are not suitable for raising together.

Secondly, their body shapes are quite different. Grass goldfish are bigger in adulthood and Lanshou goldfish are smaller. If they are mixed together, grass goldfish will easily bully Lanshou goldfish. Finally, the metabolism of grass goldfish is faster, so the pollution to water quality is serious, so it is best for breeders not to put them together for breeding.

Lanshou goldfish is gentle in character and clumsy in action, so breeders can choose to mix them with other small fish. The more common tropical fish are guppy, kissing fish, scavenger fish, zebrafish, etc. These kinds of fish are mild in character and will not take the initiative to attack other fish. Moreover, they are all small fish, which will not cause much harm to Lanshou goldfish. In addition, they are flexible and will not be bullied by Lanshou goldfish. Although they are tropical fish, the requirements for water temperature are not too high, so there will be no big problems when they are mixed together.