Join Date: Aug 2003
Location: Indianapolis, IN
Do DIY CO2 reactors (modified gravel vacs) need to vary in size for tanks size. I was thinking a bout getting a water pump and hooking it up to a gravel vac bottom. I have a 20 gallon, and a 29 gallon. Would the pump and gravel vac vary in size between the tanks. I do not want to create a Wave pool in either one.