Goldfish are best with goldfish, but you can have weather (dojo) loaches, or bristlenose plecos, or even apple or mystery snails.
While there may be a number of varied opinions on this, and some fish keepers may have had lucky success with other typically incompatible fish in their tank, this is not the standard or proper recommendation.
There are quite a few species of coldwater fish that can live alongside Goldfish. There are Golden Orfe, Blue Dace, Rudd and several species of catfish too. Check with your local pet shop what coldwater species they have available on their lists.
Other cold water fish such as orandas and goldfish.
Your goldfish will not live "longer" no matter how many or how few you have.
Not normally unless they are dying, goldfish are community fish and usually live fine with other.
A goldfish will often live in groups with other goldfish. However, a goldfish is also great at being a solitary animal who doesn't need other fish around them to survive.
That depends on what the other fish are, and what type of gold fish it is.
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.
other goldfish
Other cold water tolerant fish.
A Loach can be with goldfish.
No, goldfish are freshwater fish.
Yes they can but if you have other fish in there that are smaller the gold fish might eat it.
Goldfish should not live with tropical fish; their needs are different.Goldfish are best when kept with their own kind with the exception of weather loaches, or bristlenose plecostomus.