Black Diamond Aquarium Carbon

Improve your aquarium's water quality by checking out our filter media selection. For sparkling clean water try our Black Diamond aquarium carbon.
  • Improve your aquarium's water quality by checking out our filter media selection. For sparkling clean water try our Black Diamond aquarium carbon.
  • Our ammonia neutralizing crystals and aquarium carbon are amongst our best filter media. Shop Marineland today!
  • 22 oz Black Diamond Aquarium Carbon
  • 40 oz Black Diamond Aquarium Carbon
Product No. PA0370

$7.69 - $40.49

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Black Diamond® Premium Activated Carbon eliminates discoloration, odors, and impurities...and keeps on doing it long after other carbons quit.

Heat-activated bituminous coal-based Black Diamond granules are specially sized and far more efficient than inferior coconut, wood or peat-based carbons. Premium Black Diamond works as much as twice as fast as the competition. 

How much carbon should I use per gallon of water?

I have a 29 gallon freshwater tank, stocked with 6 anglefish and 2 Kribs, I am using a Whisper 40 filter.I do a partial water change every week. I change my carbon the first of every month.
Asked by: Guppy49
Each cartridge comes with 1 ounce of carbon. BREX
Answered by: BREX
Date published: 2015-12-07

Does the carbon need ot be washed first?

I just got the 40 oz container of Marineland Premium Activated Carbon. I was hoping for instructions (such as: if the charcoal needs to be washed before use) but, the writing on either side of the package is not in English. Couldn't find an answer in the Q and A section either so, can you tell me if this charcoal can just be used right out of the box or if it needs to be washed first before use. Thanks
Asked by: intanet
I've used it without washing, but ideally, you should lightly rinse it prior to use. BREX
Answered by: BREX
Date published: 2016-03-21

Human consumption

Hi just purchased your premium activated carbon. Can it be used for human consumption, as in water filters or other liquid filters for human consumption?
Asked by: MarkP
We have never tested it for such use before, and therefore, cannot recommend it. BREX
Answered by: BREX
Date published: 2015-09-10

do your products come sealed under the lid?

i purchased a Marineland Black Diamond Activated Carbon, 40-Ounce first off i opened it and it wasnt any type of seal on nor under top to verify it wasn't used or misleading product and it doesnt look full to the top think its safe and is this normal please shine some light on this so i am aware before i go any further
Asked by: pmacahoe
The Marineland Black Diamond Activated Carbon is not sold in a sealed container, as it will not loose its properties in air. MINI
Answered by: MINI
Date published: 2015-08-20

1/2 of carbon falls through holes on Emperor 400 media container

I am confused. The Media containers on my emperor 400 look as though you are supposed to pour the carbon directly into them. There are divider baffles in the cartridge seemingly to keep the carbon from clumping on the bottom. However, after filling one cartridge with Black Diamond media to just below the baffles on the bottom half and rinsing, half of the carbon just washed out the holes. So I checked the owners manual and I apparently did everything right. Am I missing something?
Asked by: Earldw
You do pour it directly into the media container. You should lay it flat and fill it from end to end, to just below the top edges of the container, close it, then lightly rinse it for about 5 seconds to remove dust. If you rinse too long, you will cause the carbon to break down. BREX
Answered by: BREX
Date published: 2015-07-22

Are Black Diamond Aquarium Carbon pellets suitable for use in pet water fountains? Also, what is the mesh size? Thanks

Asked by: Halfcent
We have not tested them for this use, and cannot provide that answer. Mesh is 6 x 10. BREX
Answered by: BREX
Date published: 2015-06-02

The numbers on the sides of the container are they expiration dates, for example on the 40oz carbon pa0373 p/n AQ12313 2/10 and the ammonia 12/09

Asked by: SMC80
No, we do not have expiration dates on these products. They are part of a manufacturing code. BREX
Answered by: BREX
Date published: 2015-05-29

Does your activated carbon contain or release any phosphates or nitrates.

Does your activated carbon contain or release any phosphates or nitrates.
Asked by: Timothyf
No and no, it does not do either. BREX
Answered by: BREX
Date published: 2015-05-28

Hi, What is the amount of activated carbon needed for 100 G saltwater aquarium. I use reactor for Carbon.

Asked by: Reza
Hello Reza, Unfortunately, that amount varies. I have seen recommendations of 1 tablespoon per 10 gallons of water to 1/2 cup per 50 gallons of water. There does seem to be an agreement that it should be changed monthly, and added slowly so maybe start with 1 tablespoon per 20 gallons of water for a few weeks, then slowly increase it with each filter change to 1 tablespoon per 10 gallons. BREX
Answered by: BREX
Date published: 2016-12-04

How often in general should this carbon be changed?

Asked by: Lawise
Although it depends on the stock load, the activated carbon should be replaced [on average] every 2-4 weeks. ML2
Answered by: BREX
Date published: 2015-08-03

Is the Black Diamond Premium Activated Carbon safe to add to cat litter?

Asked by: DRailroad
Yes, it should be, but we have not tested it for this application. BREX
Answered by: BREX
Date published: 2015-03-09

I have 2 questions 1.has this activated charcoal been acid washed? 2. Can it be burned or will it give off a carbon dioxide?

Ok dont think i am a nut...I need a Quality coconut or coal based carbon to use in my kiln when I sinter metal. Since I have a lot of this leftover from when I use to keep fish . I was wondering if I can use this product. Why let it go to waste....
Asked by: zbella
Our coal based activated charcoal is not acid washed. If the kiln is of sufficently high temperature, the actived carbon would burn and naturally emit CO2. As well as the fact that you are using “spent” carbon, anything that had been adsorbed on to the surface of the carbon will be burn off as well. Please be advised that any use of our products for purposes other than intended is without any guarantee or assertion on the part of UPG in regards to the safety and performance of that product. BREX
Answered by: BREX
Date published: 2015-08-03

Does this product come with a mesh bag?

Asked by: Craigm
No, it doesn't. You can buy one or make one out of a woman's nylon stocking. BREX
Answered by: BREX
Date published: 2015-01-29

Canister filters

When we got our Marineland C360 canister filter the carbon was in mesh bags, do they need to be in bags or can it be just pour in and how much of the black carbon do you put in for the C360 canister.
Asked by: EMANORMA
Yes, the carbon needs to be in mesh bags, you can use a woman's nylon stocking and just cut off any excess after tying it. The amount is 300 grams total or 100 grams per one of our bags. BREX
Answered by: BREX
Date published: 2014-08-29

Is this activated carbon petroleum based?

Asked by: Davey
It is made from coal, but no, it is not petroleum based. BREX
Answered by: BREX
Date published: 2014-07-08


I heard active coal is great for cleanse in the body. Is this the same as tablets?
Asked by: ipapoptart
I have no idea. Our products are not recommended for human consumption. BREX
Answered by: BREX
Date published: 2015-08-03

Can i put these carbon pieces in some kind of bags and leave the bags in the air(eg. On a desk) to use them to suck up odor in the room? If so, what material of bags should i use? Should i wash the carbon pieces before putting them in bags?

Asked by: Yli9
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