Since I'm new I thought I would start contributing a little. Here is a site that will get you the best carbon and phosphate media. \r\n\r\ntwopartsolution.com\r\n\r\nROX .08 carbon is often used in labs and is really good. The phosphate media they sell is generic, but has been vouched for by some good guys. Hopefully that will save you some money over the name brand stuff.