If you do a search in the cultivation threads there's a real cool doc on how to build your own carbon scrubber. I can't remember who wrote it but its basicly made out of a little wood, filters that you can get at Wall Mart and activated carbon or charcoal that you can get at fish stores.

Oh yea, and a "fart fan" Which was the authors term for a bathroom fan.
RoboGro Reviewed by RoboGro on . Sentinel's First Grow Well the day has finally come, after researching and reading about growing for about 2 months today I am planting 5 northern berry seeds, in the little peat pots, just with some sterilized soil.Then i will put in 1 gallon pots for their complete veg, until they show sex then i will transplant the females into 3 gallon pots. For the first week or so i am using 2 40 watt fluoro shop lights, then when the 400W MH gets here (along with some other goodies from insidesun) i will hook that up and use Rating: 5