I'm in reef lover camp, can't explain on a biological level what is happening during the vibrant dosing. I'm a desperate guy taking any recommendation to rid this issue from my tank. I've never had problems with excessive NO3 and PO4 levels as I have a low bio-load. I spot feed the few coral I have twice a week and rely on the Chaeto to consume the extra nutrients in the tank. I plan on reinstalling filter socks and changing them out every three days and stick with the weekly 10% water changes. I'm going to dose Vibrant, wait three days, dose Vibrant again, wait three days and preform a water change, then dose Vibrant the following day.