Awesome product! By David on 1/20/2016David would recommend this product to a friendThis works just like Zevit's description states. Awesome product.
this works By jersey pete on 12/29/2014jersey pete would recommend this product to a friendAfter a few weeks of use this has removed the ulgy mulm deposits the build under the over hangs of my rock in the tank. Used to blow it off during water changes but would make a mess of the tank. No rock is clean. Great product. Only took one bottle. The smallest size to work