Premium Activated Carbon, Aquarium Carbon for Fish Tank Filter, Aquarium Filter Media, Granulated Charcoal for Fish Tanks, Activated Charcoal Bulk (3 lbs with Fine Mesh Bag)

So far so good. It help clear up the water in the fish tank. Fishes are still alive so I gave it 5 stars. Like that it came with 5 bags

Charcoal does its job keeps aquarium water crystal clear either use bag that comes with it or purchase extra fine bags I used my fine media bags and charcoal was coming out now that issue solved will definitely purchase again.

The cleanest carbon i ever used, this stuff is plug and play it's rinsed so we'll that a pre rinse before install produces no black ash residue at all. Highly recommend

Seems working good

Hyundai evacuation canister repack. Perfect amount of charcoal for my purpose. Also used aquarium charcoal matting material. Cheap fix compared to new purchasing new canister.

I kinda wish the crystals were a little bigger, but it does what it says it does. I have a 40 gallon tank with a lot of wood. Water became dark brown, even after allowing the wood to seep; the water is now a light tea color. I integrated the activated carbon into the filter and the water stays relatively transparent/light brown. I just have to replace/rinse the carbon once every few weeks or every other month. Really happy with the purchase overall.

I order this item for the second time. Good quality and enough for a long time.

Bag was too small