Not much of a DIY, but I've been wanting to try this for a while. I don't see or hear about alot of algae scrubbers, especially on nano tanks. It's just a sheet of craft mesh, air stones, and a few zip ties. I have a small LED white light to shine through the glass to light it up. Its supposed to out compete the algae in the tank and starve it, much like a refugium with cheato. I guess if it doesn't work I'm out $1.97 and about 10 minutes. I think it's worth the gamble, lol. Anyone used one a scrubber with luck? Thanks everyone for looking. Happy reefing.