I have been keeping freshwater tanks for awhile now and I've decided to take the plunge into the saltwater side of things. I have always been following the saltwater threads here on the forum and I have done a bit of research myself. The tank i am planning on is a 20L FOWLR. I have a canister filter on my take right now and I know the traditional filtration methods for freshwater tanks are bad for saltwater but I found a skimming attachment for a canister filter and wondering if anyone had any experience with these.
[ame=http://www.amazon.com/Hagen-A240-Fluval-Surface-Skimmer/dp/B000256CGY/ref=sr_1_1?ie=UTF8&qid=1372358511&sr=8-1&keywords=fluval+skimmer+attachment]Amazon.com: Hagen Fluval Surface Skimmer: Pet Supplies[/ame]
Also is there any way I could use the actual canister, because I know the media in it now isn't too great for saltwater filtration, like can put rock in it to hopefully turn into live rock? Any help is greatly appreciated.