But never stock C. barbatus with goldfish. Barbatus needs lots of fresh, oxygene rich water, and the current they like is way to much for a goldfish in the long run.
If you want a cory, i would stick to paleatus.
How big is the tank and the goldfish in it? - If it's really big (goldfish can grow quite large aswell) maybe some brown bullhead (A. nebolosus - If the goldfish are beond eating size). Maybe not the best advice either, but i just love the look of that fish, find it to be a REAL cat.
Kr Allan
EDIT: OK, just saw it's a 25 g, so NO bullheads for you
