Marineland Black Diamond Activated Carbon Filter Media eliminates discoloration, odors and impurities for sparkling clean water, and continues to do so long after other carbons quit. These heat-activated bituminous coal-based Black Diamond granules are specially sized for optimum effectiveness and are ideal for all aquarium filters. They work twice as fast and are far more efficient than coconut, wood or peat-based carbons.
Successfully eliminates discoloration, odors and impurities.
Leaves water polished and sparkling clean, and continues to do so long after other carbons quit.
Heat-activated bituminous coal-based Black Diamond granules are specially sized for optimum effectiveness.
Ideal for all aquarium filters.
More efficient than coconut, wood or peat-based carbons.
I use this in the filters in my turtle tanks. I love the nice big sized container because I change it in 3 tanks every two weeks.
on Dec 11, 2020
Sadly, I no longer have fishies since we hit the road in our RV full time. I use this charcoal to stuff old socks to stash in closets, drawers, and cargo compartments, and it works great for that. The bay where we stow our pupper supplies no longer reeks of old dog foot. LOL. I also use it in the bottom of our planter pots.
on Mar 6, 2021
Pretty good, use for aquarium water filter and cat box with litter mix in a cup with 20 pounds of litter.
Just awesome just what i needed
on Apr 14, 2021
Retail value is 30+ very nice to get it at this price.
Large container for a great price
on Jan 26, 2021top250Contributor
Use this in my house plants. It's nice and fine and much better buy than the little container from the store.
DOES AS DESCRIBED
on Sep 19, 2020
I run this in my saltwater tank on occasion, I prefer buying in bulk and this is a lot for your money..Highly recommend.
Perfect carbon media
on Jul 15, 2020
I really like this carbon media for my aquarium filter. Easy to use. Great value for the quantity and quality.
Good buy but a lot of work
on Jun 13, 2020
Great deal for the money but be prepared to spend 20-30 minutes rinsing then gravel. There’s an unbelievable amount of dust in the package.
on Dec 28, 2019
Works great in any tank size, more cost effective to refill and wash out the bags in filters rather than the pre-filled bags. Lasts much longer with a greater volume when you fill and refill yourself.
on Mar 31, 2020
This stuff is the best, my turtle tank was cleared literally overnight!