What brand carbon do you believe in??

[bhdmc]

ESV is what I use.

 

[TheSTONEisDead]

So far the stuff you can buy at Wal-Mart can get the job done for me. It's made by Marineland, so it's not just crap.

 

[Drewcipher]

I use chemi pure. Never had any troubles. Not exactly sure how you compare brands of activated carbon, but....