I am new to protein skimming, but I have an Aqua Clear Aquatics protein skimmer in the sump of my 80G reef. The first day it was working fine, but now for some reason the bubbles stay at a certain level and very rarely rises. This occurs no matter how high I turn the air on. I am wondering if this is normal, since the times that it does rise enough to release into the collection cup it only does a little and then the bubbles go back down where it was. I have tried to find anything on the web I could about this and one person said that you need to break in the skimmer. Any help would be appreciated.



