The lights are coming back on slowly and things are looking a lot better. The problem has not been totally fixed but at least now some rocks are clear and some just have a fine fuzz. May try another black out after I get the rest of the bio balls out and a more diluted RO water supply. I think it is about time for me to buy new test kits as I no longer trust mine. I wanted to make sure I had them all covered. I am trying to locate a kit with all: Ammonia, nitrite, nitrate, PH, Phosphate, KH, Magnesium and Calcium. Is there anything I may be missing can anyone recommend a good kit? I normally use API but havent found one with all those in it. I suppose I may have to supplement with individuals. I am also having a problem with my p skimmer. It was broken in and working beautifully, and then I had to turn it off to clean the cup. When I got it running again it was spitting out more micro bubbles then the prop from the titanic. As well, no matter how low I set it it wouldn't stop over skimming. I use the Coralife 125G as an in-sump skimmer, Anyone have any past experience with this issue? I have been running it for about 6 months! Thanks again for all the help on my transformation into a true hobbyist.