Review on PENN Stone Accessories 5 5 Inch 2 Inch by Jamie Dawson

My 10 gallon aquarium had an oily film on the surface that the filter couldn't clean. I ordered a 5 1/2" Aqua Mist rock along with a Tetra Whisper 10 air pump. It works great and creates bubbles all over the place (should be flat). It's quite heavy and has edges that you can gravel while you hold it in place (it can be placed completely under the gravel but mine is flush with the surface of the gravel) all day and the water is crystal clear has never looked so good the fish are looking healthier have one beautiful color and are more active. Tetras like to swim in bubbles and the plecostomus sometimes lies right on top of it, it is interesting to watch. This greatly increases the flow in the aquarium. and the fish thrive. Great product!