hello I'm new to this whole thing I've got a 72 bow front tank 20gal home made sump with built in ref. 48 coral life 2x 150mh 2x 96 pc got a assortment of stuff in the tank thought i'd join a forum to learn all there is to learn about it. I've had alot of early hobbyist jitters like diatoms then fish get sucked into power heads but i am hooked on this hobby