Ok so my tank has been up and running for acouple of days straight, and the micro bubble are just shooting out of the returns. In the return sction of the sump, I dont see any micr bubbles, and I dont see any in the clear part of the return line, but when water comes out of the loc-line returns it seems to be almost pure white with bubbles, filling the tank. the water level in the sump is half way, and the return is a bulkhead at the bottom. Anyone have any ideas?