Awesome! Does what it says it does! By Greg on 3/20/2013Greg would recommend this product to a friendI've been using this product for a good 2 weeks now and I've noticed much better water clarity. When dumping my waste water out from water changes it is no longer yellow. My corals have exploded with growth since I started the whole zeovit system 3 months ago. I would highly recommend this to any reef junkie!