I had a great idea for a Purigen Filter. The ZooMed Turtle Clean 501 is a small filter made for Turtle Tanks. I already have more than enough filtration for my tank, but I was wondering what all of you though of this. The Turtle Clean is made to have a HUGE carbon chamber but very little biomedia space. Since turtles are messy, the carbon helps keep the smell down. If I buy one of these and instead of filling it with carbon, fill it with purigen packs, do you think this will keep my nitrates low? It will most likely contain 4-5 times the amount of purigen needed to keep the tank clean. I am pretty sure that this will work. What do you all think? Ewurm already knows what I am talking about.