Its a really odd assortment of fish in there actually. It started off as a tetra tank so I had 6 Red Minors, 6 Black Skirts, and 5 Peppered Cories for the bottom. Then I added about 15 Neons, all of whom died within about a month and a half. Water was fine tho and no other fish were lost so it was probably just a bad batch of Neons. Added 6 Bloodfin Tetras and 2 Ottocinclus after the neons died and after i was sure the tank was ok. Now here is were it gets odd, 2 Gold Gouramis, 2 Blue Gouramis, a Red Tail Shark, and an Eclipse Cat all call this tank home, and with no issues. this is the stock that i have now and that I'll probably stick with til I either lose some fish or rehome some fish.