I took my skimmer off-line! My grow light came in (the red blue LED variety) so figured it was time. I placed my cheato ball inside the sump chamber that my skimmer called home. It's the largest section of my 55 sump. I don't plan on testing Phostphate.....at least not much. I'll keep you guys posted. I only changed my skimmer collection cup about every month, so couldn't have been doing much, except increase the db in the house. We'll see if my SPS like the switch....fingers crossed. Anyone with suggestions please post!!