How are goldfish shaped approaching they are and competent to live?

African Clawed Frog breathing press?
They live in lake in the wild, and they come from carp, as said above, the Fancy Goldfish are just different breeds of cistern Goldfish. They live... in the rivers/lakes?
Does any one know how big is...
Well as you can see in the picture all the guts sit surrounded by there just fine and they're able to move, get through, sleep, and poo. That's all ya really need!

http://jscms.jrn.columbia.edu/cns/2006-1...
What can I do for my anti-social...
Answers:    In the wild they don't. Goldfish originated from common carp and be selectively bred for for the gold color. Fancy goldfish were selectively bred from those original adjectives goldfish as certain traits appeared as natural mutations. In the wild fish beside those mutations would not survive to reproduce because it would be a handicap to them. However humans breeding them in a protected environment liked those unique traits and selectively bred for them giving us mutations that would never survive within the wild
Will this be OK for a Betta (*pic included)?   Fish, shrunken stomach?   My pale tang have some white fuzzy cotton looking stuff on the corner of his mouth,anyone know what it is?   Blood impersonator cichlid fish, strange behavior and digging. Help?