well i have 5 mollies, 5 balloon mollies, 1 guppy, 9 zebra danios, 2 dwarf gouramis, 1 clown pleco, and 4 small clown loaches and my filter is a 25w aqua something im not at home atm so cant check, but i was wanting to add a bn plec and some more mollies and guppys and maybe a few neons