you should be able to buy a mesh bag at (gulp) petsmart, put some carbon in it, and drop it into your skilter. (You'll have to pull the filter cartridge, but that's a good idea anyway unless you rinse it daily).
Please be sure to check out our research section here.... TONS of great info that you will find helpful, and will save you lots of $$$ in the long run!
http://www.reefsanctuary.com/forums/...?s=&forumid=13
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