It's a 90l sorry am from uk so dont do gallons. I have some zoo's in there hammerhead, ricordea, toadstool, pulsing Xenia (which amazes me) I have a beaut flower anemone, flame scallop, firefish, clown, pyjama cardinals, high fin goby, porcelain crab, anemone shrimp, fire shrimp & pep shrimp! I do have a couple more but I'm still quite new to it all and forget some of the names! I love it & am very addicted to it