here are a few pictures of my scrubber. I have had it up about 3 months. The first picture is what I collected today. I collected the same amount about one week ago. The second pic is of the scrubber after I collected. I am going to tweak it more by providing more light over the surface of the plastic canvas. I feel I have had great success with the scrubber, it always seemed I was fighting algae in one of my tanks all of the time. I am now algae free. Even my grape caulerpa has melted away from lack of nutrients.