Kent Carbon Issue Here
http://www.kentmarine.com/news/news-...arine-reef.htm
I use Sechem Matrix, a little expensive but I like.
We just got the Brightwell Carbonit-P
http://brightwellaquatics.com/products/carbonitp.php
I have yet to add it to the site nor do I have a price yet but it think it might be less expensive than the Seachem. Both very good choices.
Ray