don't know too much about my reef creations reactors..., ...go online and google," my reef creations," and see how much it is online. i think they're fairly cheap, and a bottle of co2, is like $75 or 80 filled downtown!! i thought of one thing we forgot today at poa hoa....a heater!!!! dahhhhhhhhhhhh! tell them it's pretty important....another $40 or 50...what the heck!!! alright tom...sorry i'm not much help on this one... i would probably try to find something with an eheim pump...they last forever!