Other goldfish, preferably This will ensure that the goldfish will not be injured by other tankmates and also ensures that the other tankmate's gills are not damaged by the large amounts of toxic wastes (ammonia) that the goldfish produces daily.
yes
Your goldfish will not live "longer" no matter how many or how few you have.
Yes, goldfish are cold blooded animals so they do not burn up as much energy as warm blooded animals do to stay warm.
Goldfish may only appear to eat fish food but technically they are eating other animals because inside fish food is a rare animal named the bbanornet which gives protein to small fish such as the goldfish.
goldfish do not live on land
They all originate from the same roots, but since goldfish that live outside are more used to the cold and other changes, I would say that goldfish that live outside are stronger and more likely to survive.
yes, dragonfish can live with any other docile, non-aggressive fish.
Pandas live with other animals which are birds, rabbits, snakes and insets
Animals which live on the surface of other animals are called parasites.
Goldfish do not populate any rivers. This because goldfish are not wild animals, so for one to be living in a river would be about the equivalent of a golden retriever living in the woods. Goldfish do not populate rivers, however, they can be commonly found in outdoor ponds.
Well, you gotta chose fish that live in the same conditions as the goldfish such as Koi. You could also do some researching and find out too.
Birds, foxes, otters, skunks, beavers