Well guys. Im useing a Proclear Wet/dry SL60. Here's the link. http://www.proclearaquatics.com/wetdry.html It's the first one on top. My pump sits inside the sump of it on the right side. I also have another pump next to it pumping water to my Fuge. I have a skimmer that sits inside the sump, but ive turn off my skimmer to see if it was the cause of it and they still kept coming out. I did change the hose from the pump to the tank and it's been 4 days and it hasnt cleared up. My return from my fuge is PVC that drains in my sump. Could that be the issue? I have the water level almost 2 inches high the the factory water line Proclear put on it. Someone please help these bubbles look very ugly and it bother the hell out of me, LOL