I picked up two 4-5" clown loaches and a 4" striped rapheal catfish for nothing
There was also two free 14" iridecent shark (sp) and two 10 " bala's that I didnt want but man what a steal.

Start feeding them bloodworms and brineshrimp, anything high protein. Trust me, they will grow!! My clown loaches have gotten really big in the last few months ever since their bloodworm diet. Gotta get my 80g set up in a hurry.I wish I had some big clowns. I've had 3 of mine for a year and they are only 3" now. They grow VERY slowly. I'd have to guess 4-5" clowns must be already 3-4 years old. =(
pedzola said:When I asked petco to take a fish they said no. They said nothing about adoption, they didn't ask what kind or what type of fish, they just said "no."
Maybe it is different from store to store.