Originally Posted by circus clowns
I used filter bags , but that might not be your problem your return shouldn't make bubbles, what kind of pump do you have and your setup?
I'm using a 700gph mag drive type pump that runs in-line (using hose not pvc
) from the sump to the bottom of the tank. The tank has a built in overflow box. The protein skimmer sits in the sump in addition to some live rock. There are two ball valves attached to the return line. One before the return pump and one after. They are both opened fully.