Gold

Goldfish get along well with most peaceful, similarly sized fish. Fin nippers and boisterous fish should be avoided. If housed without a heater, they should be kept with other fish that are tolerant of cooler water temperatures. They are gregarious, meaning they like to hang around together. They are intelligent, have long memories and can become very tame. They can be taught to hand-feed and interact with their owners. They can also distinguish their owners from other humans. Goldfish of different sizes can be kept together, however, commons, comets and shubunkins may become too boisterous for smaller fancy goldfish as they grow and may need to be separated. Always consult an aquarium expert before adding any new fish to your aquarium.