Hey Blemmy...how often do you change that polyfilter stuff on top? Today for the firs time with our water change, we also took out the "rocks" under the pad, then got to the blue pad and rinsed it clean. It was kind of mucky....not pretty!! Put that blue pad back in, the rocks and then the new polyfilter stuff....so hoping this will be good. For some reason we had tiny touch of ammonia today in our lfs water test...have not had ammonia since we cycled long time ago, made me nervous. LFS guy says..oh fine, normal.....healthy tank....nitrite and nitrate were 0....ammonia .25..any idea why? remoraC still doing excellent job but do notice maybe stuff a bit too thick and not pulling as much as fast, so put cup in deeper to pull a bit more thinner...any other suggestions? We have added a couple of corals this past week but that is it....I think i might have been feeding too much so cut down that a few days ago...don't feed tons but what I was feeding does blow around the tank, so trying to do less of that. All looks fine and healthy now, just not sure why I have an ammonia reading..we checked and all are happy and doing well and alive....was going to put another fish in next week, going to hold off again..have not put one in for a while now.