Use this brand of carbon if you want long lasting results. I use 3/4 cup in each filter on a Whisper 60 dual filter unit. I don't have to change it for 2 months. Of course depending how many fish you have, and how often you feed them, your results may vary. Absolutely the finest activated carbon available.
Verified purchase: Yes | Condition: New
I bought this to go in the two plastic clamshell filter inserts, that go in my Emperor 400 power filter, to take odors out of my tank. That was almost two weeks ago and I have noticed absolutely NO change. Very disappointed...
Verified purchase: Yes | Condition: New
DUDE!!! I have a 30 long with big dark driftwood from end to end and live with tannins from the wood. I just used this carbon on another brand new tank and it's crystal clear so I thought I'd see if it remove the tannins. I'm using a Marineland Magnum 250 (gph) hang on the back canister filter, I put the carbon in last night and this morning the tannins are completely eliminated, gone, crystal clear water so clear it looks like the fish are swimming in mid air
Verified purchase: Yes | Condition: New
Noticed immediately that this product made the water in both my salt water and fresh water tanks crystal clear..Highly recommended for any aquarists.
Verified purchase: Yes | Condition: New
For any aquarist who maintains more than one fresh water aquarium, this is an excellent purchase over the price charged at the big name box store pet chains. Very economical.
Verified purchase: Yes | Condition: New
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