biowheel

I've never used a biowheel before. The Marineland kit came with one. It has two "slots." One is for the filter cartridge. In the other, I can use another cartridge or can I move loose media currently in the AC?

Aquarium is in good structural shape, no leaks. A little dirt on the side but after a quick wash it'll be fine. Filter is in fine shape. No media. email me if you have questions: lamp.greg@gmail.com If you have holey rock, a 20 gal long, or some nice sand substrate to throw in for trade...

have the entire setup as well as biowheel 60's to be included (used them as the sole output and it worked great) new tubing for the input and existing output tubing w a 90 reducer for the biowheel tubing have the 4 sponge mechanical filter squares (still in good usable condition) and a...