*thumbsup2*I have a 75 gal bow front for my turtle viquarium, it only has about ~20 gal of water and turtles are VERY, VERY dirty. My set-up uses 2 pumps, an "Ocean-Clear" mechanical/biological unit (backflushable bead media unit built for ponds and BIG tanks) and a rainbow "2" chemical unit. The quality is great and it holds about a quart of media easily. So, no more stinky turtle tank. If I had the $ I'd get the whole system for my planted aquarium.
RGDS