its a 160 litre tank with heater and filter, ive got 3 fancy guppys, 3 endlers guppies, 2 balloon mollies, 2 platties, 2 honey gouramis, 2 snails, 2 shrimps, 5 neon tetras, 3 rummy nose tetras, 1 cory catfish, a plecos, and the 2 dwarf gouramis...the tank is 3 months old, i do a 30% volume...