I have this issue, I have 2 Reefwave 45's, 1 is great.. never has issues. I have another that does nothing but blow micro bubbles no matter what. I have cleaned it multiple times with vinegar and without fail, will blow bubbles 2 days after I have cleaned it. I have attributed this to a very thin coating of some kind of slime algae. So the weird thing is its only the one Reefwave that does it. My other one that I have has not been cleaned in 3 months, never blew bubbles. I have tried to allow the problematic reefwave run for a longer duration just to see if it will eventually stop, but to no avail. It does not matter where I place it as far as water level, it will blow bubbles 3" down or 8" down. Its obvious that when its closer to the surface my lighting is accelerating whatever algae growth I have on it. My last PAR readings where about 550 where the reefwave runs. (This is on a SPS only system) But the other Reefwave sits at the same height in the water. Its just rather baffling to me that just one gyre will do this. Any thoughts?
