Ohh, didn't know about the expanding.. thanks. Well in that case, I think if you soaked freeze-dried stuff in water first so it was pre-expanded, that might help.
Micro pellets might be good for younger fish, but they might not be a favorite among larger adults.
There are some heaters that would fit in a small tank, but it's easier just to get a larger tank. Some fish in crowded spaces don't open their fins very much, so that might help. Also, you could do water changes less often. They might not seem unhappy in small tanks, but they would be much more happy in large ones.
Last edited by EllaFish; 06-20-2012 at 12:56 PM.