I had a 36 gallon bowfront, sand heavily planted tank. I had a 7 angels quarter size, 2 double fin fancy plecos, 4 Cory cats, 2 swordtails, 3 mollies, 6 neon tetras, and 5 cherry barbs. Way too much even though I had a filter for a 55 gallon tank. Won't make a mistake like that again, learned my...