i put over 20 fish all over 3 inches in a 30 gallon. including 3 bala sharks, 3 iger barbs, 2 pictus catfish, a clownkife, a dragon goby, and 2 columbian sharks. along with a bunch of platys. i dunno how they went along, but they did somehow. then i wondered why i kept getting ick outbreacks. so i bought more fish so the ick would be spread more thin and more evenly among all the fish.
lol I assume you realize ich meds are the way to go now? also the number 