2 Pack – 24 Ounce (Total 48oz/3LBS) Premium Laboratory Grade Super Activated Carbon with Free Media Bag Inside Each Jar – AM Brand

Incredible. I really like using this carbon and have used it in my freshwater and reef applications. For the price and qty alone you really can’t beat it. It has worked well in bags and a reactor and does not grind away easily. It also rinses nicely when replenishing, As a matter of fact, I almost felt it was a shame to toss after my first change as it still looked great and was keeping my water crystal clear. I used it for a month and will continue to push a bit further to see to what extent it lasts. I tested my findings with the white bucket test and my water was crystal clear. I’ve since changed my setup to try a waterfall effect over a baffle in my sump to test the ways in using the product and it seems to be working great in this fashion as well. Good item and will buy from again. (Setup = 75g reef display with 40g sump, and a 40g breeder display for freshwater goldfish, no sump, and use inside of my Aquaclear 70’s)