Hi, fairly new to saltwater aquariums. I have a 30 gallon bowfront tank that has been up for around 1 year. I have a Penguin 150 Bio Wheel pump. I currently have four fish (2-tank raised clowns, 1 black and white damsel and a small Blue Regal Tang) I have recently added a Frog Spawn frag and a piece of Brain coral. I have about thirty punds of live rock, and try to do a water change every seven days. I hope to be able to learn a lot from the folks here.