This one has been a brainchild of mine for a while. I have really, really needed to get a waterfall scrubber on my personal tank to compete with the UAS "test" model that I have been running for the last 9 month. So, I finally dedicated a little time to getting this done, and here it is So this hangs on the rim of my 120 and there will be a nylon thumbscrew on the back bottom of it (inside the tank) to keep it level, and possibly a couple along the back lip to secure it in place on the tank, but I'm really not worried about that. The squares on the ends are there because I screwed up a few of the pieces and had to use scrap material that had big holes in them. So this is just a quick-and-dirty one I threw together. It's made for a Rio 1100 pump, so this will sit near the center brace on one side, with the scrubber sitting on the corner of the tank. Once I get that installed I'll start a new thread (or hey, here's an idea, why don't I start a thread for my OWN tank on my OWN forum, dang man I'm a slacker!!).