i am have a problem with lots of micro bubbles coming out of my returns. i have a 125 gall with a sump, asm 2 skimmer and a mag 18 return pump. i have a sponge in the chamber of the sump and a sponge on the return pump. this is a new system. i thought it was from the skimmer breaking in but i have the skimmer off right now for treatmet on a fish and the bubbles are still there. they are real tiny and make they water look like crap. please help i am very frustrated any suggestions will help thank u


