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.
Goldfish in an aquarium are influenced by the temperature of the water, just like they are in ponds. Jupiterimages/Photos.com/Getty Images. Goldfish are cold-water fish and can withstand a wide variety of different temperatures, both in aquarium settings and in outdoor ponds.old Water. Goldfish love a refreshing swim and will actually perk up and swim faster when fresh, cool water is poured into the tank. Changing out a quarter of the water from time to time with some that is many degrees cooler is perfect for the goldfish.