The three types of symbiosis are... Mutualism: A relationship in which both species benefit. Commensalism: A relationship in which one species benefits and the other speci â¦ es is neither helped nor harmed.
Definition of goldfish. : a small usually golden-orange Asian cyprinid fish (Carassius auratus) often kept as an aquarium and pond fish.
A: Goldfish are a warm water fish. They can live in tropical or cold water for short periods of time but prefer a temperature around 65oF. Unless you live in a very cold climate that has a prolonged period of cold weather (3 months under freezing), your goldfish donât need a heater.