I've seen a couple of posts relating micro-bubbles to a new tank. Just wondering if this is a common occurence. Right now I've been up and running since Saturday with the return pump on and one MP40 running at 40% in a Waterbox MarineX 110.4 (80 gallon display). Skimmer is off. I don't see any obvious cause, flow through sump is about 4-6x, bubble trap in place in baffle to return chamber. Are the bubbles normal at this point? Do I just need to be patient?