outstanding By tmoua on 10/8/13
tmoua would recommend this product to a friend
So i bought this product about a month ago from BRS. And it works like a charm. Yes there are steps to use the product but after a couple days. You can see darker skim mate then before. Sometimes i even pull thick black slimy stuff out of the collection cup. I assume it must be cyano that was on my sand bed which disappeared. You have to be patient will this product because it slowly works its way with helping out the protein skimmer.