That's approx. a 30gallon tank here in teh near future it may get a little over crowded

The formula I have seen referred to frequently and the one I use is this. A fishes stomach is the size of one eye so that should help you feed correctly but not over feed. Fish don't get full

They will eat as long as you feed and will eat fast so the other guy won't get it

In the wild they don't eat every day and so will eat when they can and as much as they can. Most of our fish have never seen the wild but that instinct is still there. Hope that helps
Carol