I've started to use this mixed with food on my Reef Aquarium. I don't see any changes on phosphates after using it, but somehow noticed that i can mix it with all kinds of food except Marine Snow. If added to MS, the characteristic white flakes dont appear at all. One thing Im sure, is that the zooplankton (mostly copepods) got a lot healtier after using this regulary. A must have if you have a dragonet or another species that depends on this fauna.