Ive emptied the skimmer collection cup 2 times now. Ive gone through over 800ml of muck in the collection cup. The tank looks so much healthier. The nasty red cyano is starting to disapear. Its receeding more and more every day. The rock looks healthier. Idk how to describe it, but colors are more vibrant and pronounced. My parents both commented earlier that the tank looks much better. I agree.