whitetiprs
Aquarium Advice Activist
I just built a closed loop like the one from Melev's reef for my 46 gal and I have a bunch of micro bubbles. I used flex tubing from the SCWD to the return nossles with hose claps and PVC from the tank to the pump and pump to SCWD. Could there be a place where air could be getting in? What is a good way to fix that?