Cockerel fish compatibility: in addition to the previously mentioned Intraspecific aggression, the aggression of fish extends to all small,
clumsy and voile fish.
Therefore, if we talk about the Intraspecific compatibility of Goldfish, that is,
the possibility of sharing, for example, telescopes and koi carps in an aquarium or a pond, then this coexistence takes place- all types of Goldfish are absolutely compatible with each other.