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Availability:
Only 3 left in stock, order soon!
Arrives
Tuesday, Nov 17
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At a glance
- Condition
- New
- Size
- 40 oz
- Model
- PA0373
- Dimensions
- 5.5 x 5 x 10 in; 2.5 lb
- Weight
- 2.5 lb
- Liquid Volume
- 40 fl oz
- Item Form
- Solid
- In the box
- See Label
Features 5
- FOR CHEMICAL AQUARIUM FILTRATION: Black Diamond Premium Activated Carbon removes odors, discoloration and impurities for clear, sparkling aquarium water.
- SPECIALLY FORMULATED: Composed of heat-activated, bituminous coal-based carbon.
- EFFICIENT: Specially sized keeps on working long after other carbons quit.
- FOR ALL FILTERS: Ideal for use in all aquarium filters.
- MARINELAND FILTRATION PRODUCTS: Count on Marineland brand for the most reliable, technically advanced aquariums and accessories on the market.
Description
Marineland® brand is the world’s leading brand of innovative equipment and environments for consumers wishing to create the ultimate aquatic showcase. Committed to fishkeeping success for over 40 years, the brand is the professional’s choice for commercial display systems and scientific research. Whatever you’re passionate about – freshwater or saltwater, big or small, beauty or science – make your aquarium your own. Marineland® Black Diamond® Premium Activated Carbon removes discoloration, odors and impurities for sparkling clean aquarium water. Composed of heat-activated, bituminous coal- based carbon, this media is ideal for chemical filtration in all aquarium filters. Black Diamond Premium Activated Carbon granules are specially sized and far more efficient than coconut, wood or peat-based carbons. Ideal for use in all aquarium filters. Clean, sparkling water is the mark of a healthy, thriving aquarium. The amount of filtration needed to maintain an aquarium depends on a number of variables. These include tank size, individual maintenance habits and fish population. Whatever your individual needs, Marineland brand has the filtration products you need to deliver on-target, advanced filtration.
Specs 21
| Brand | MarineLand |
|---|---|
| Liquid Volume | 40 fluid ounces |
| Item Weight | 2.5 pounds |
| Item Form | Solid |
| Number of Packs | 1 |
| Product Dimensions | 5.5 x 5 x 10 inches; 2.5 pounds |
| Item model number | PA0373 |
| Department | Unisex-Adult |
| Manufacturer | Tetra |
| Brand Name | MarineLand |
| Unit Count | 1 Count |
| UPC | 786714334487 047431901391 |
| Number of Items | 1 |
| Global Trade Identification Number | 91 |
| Item Highlight | Removes Odors, Discoloration & Impurities For Crystal Clear Water, For All Aquarium Filters |
| Item Type Name | Aquarium Spare Parts |
| Model Number | PA0373 |
| Manufacturer Part Number | PA0373 |
| Pet Type | Dog |
| Target Species | Fish |
| Allergen Information | Barley |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Nov 17
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Very pleased with the carbon.
Size: 22 ounce
I got a great deal on activated carbon. Better than some other brands. I have two turtles and they are messy, carbon is working very well in the filter.
Reviewed in the United States on August 9, 2026 by Evelyn Comerford
Great
Size: 22 ounce
Exactly what it's supposed to be and cheaper than pets mart.
Reviewed in the United States on September 9, 2026 by Dallascowboysfan
Probably excellent for aquariums, good not great for off-label odor-removal uses
Size: 22 ounce
Bought this so I could de-perfume a secondhand dresser I bought. I think it did a fair job, although I did set the drawers out in the sun so that did a lot of the work. One drawer has been resistant. However, I also had a plastic spray bottle that I'd previously put mint oil in when spraying to deter insects (mint oil spray: moderately effective) and had been unable to get the mint smell out of. I filled it with a third of a cup (sprayer holds about 2 cups) of charcoal and seems to be very effective. So, I think you would need a lot to de-stink a drawer, but this does work like the fancy charcoal being sold. Someone had mentioned that you should buy the charcoal powder. However, it *is* charcoal so black dust will get everywhere, be careful. Finally, I am using this off label so I don't want to give it fewer stars for that reason. I am sure it is good for aquariums.
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Reviewed in the United States on May 25, 2026 by mesclun
Updated 6/8/20 - I'm no longer drinking the Chemi-pure Kool-aid; Affordable and reliable product
Size: 40 ounce
Updated 6/8/20 - I've been meaning to go back and change my review on this for a long time. MarineLand Diamond Media Premium Activated Carbon, Blacks & Grays, 40-Ounce (PA0373) has officially gone back to being my go-to active carbon for my 160 gallon mixed reef. Ounce for ounce and ounce per dollar, short of buying in LARGE bulk from one of the dedicated online fish stores, this product has provided consistent results at the right price point. I'll take off one star for it being so dusty. It feels like I've wasted a lot of water rinsing this stuff before putting it in my tank. Per my earlier reviews, I do still occasionally find it lodged in impellers but you could reasonably argue the fact that the carbon is getting in my impellers is my fault. Since my original review, BRS has done some good videos outlining the pros and cons of the various styles of active-carbon. I'm not sure if it was BRS, but somebody also did an excellent video showing a series of tanks all being cleaned with the assorted "flavors/sizes" of carbon over a period of time. After becoming more educated on how and why active carbon works, I've tried the high end stuff, the bulk eBay pond stuff, the boutique stuff, and ultimately I always come back to the 40oz bottle of MarineLand Diamond Media Premium Activated Carbon. So, I apologize to the good people at MarineLand who make the product. It amazes me that I've been in this hobby for almost 20 years and I feel like I'm still constantly learning new things. Knowledge is power, folks. Learn on! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I decided to try this stuff instead of my usual product ChemiPure. I use a Phosban Reactor 550 for carbon filtration on my 125 gallon reef. A couple weeks after putting this new stuff in my reactor, I noticed that my reef octopus BH-2000 skimmer was making strange noises. I also noticed a lot of the new activated carbon floating on the surface of my tank. I discovered that the carbon was getting stuck in the finger impeller on the skimmer's pump. The image was taken 24 hours after cleaning the impeller. Also - I normally see a huge improvement in water quality 24 hours after using ChemiPure. I didn't see any improvements with this stuff. I've ordered a new batch of ChemiPure. The marineland product is going in the trash.
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Reviewed in the United States on February 18, 2016 by TimCO
Must requirement for all Aquarium
Size: 40 ounce
Top notch this is the best carbon you can find in the market with this price
Reviewed in the United States on July 20, 2026 by Dave
Quality and function
Size: 22 ounce
Great product, my aquarium was starting to get a bit hazy, this cleared up the problem in just a day, it did take any prerinsing so it saved a little time.
Reviewed in the United States on June 26, 2026 by Dave P
Activated Carbon For Terrariums
Size: 40 ounce
Activated carbon is basically the stuff in the aquarium filters and water filters you buy. It's also good in maintaining a healthy terrarium. I don't use it to refill my filters, but I do use this in creating terrariums. The basic idea is that activated carbon filters impurities in water. It doesn't last forever, as we would never change our filters, but it does last a while before needing to be replaced. When making a terrarium, it's not feasible to constantly replace the carbon, but having a layer in your soil is better than nothing in keeping the soil clean and odor-free for a time. How I make my terrariums is I layer things in this order: 1) Decorative rocks 2) Layer of sphagnum moss 3) Fiberglass screen cut to slightly less than width of container (to prevent soil from falling into the rocks and ruining the aesthetics) 4) Layer of activated carbon (which won't fall through to the rocks either) 5) Potting soil 6) Plants 7) Optional soil topper like pebbles or sand or decorations The logic of my layering is that everything will look good and function well this way. The fiberglass screen prevents the soil or carbon from mixing in with the rock layer. When you water your terrarium, the water will flow through the soil, then through the activated carbon, so by the time the water settles at the bottom (to be drawn up later by the plants and evaporation), the water is cleaner of impurities and won't stagnate at the bottom. It will prevent any possible smells, and it will be healthier for your plant roots. I use activated carbon in all my terrariums. It's not required, but it does help. If you create a lot of terrariums, I suggest you get the biggest container of carbon as it can run out pretty fast. Recommended.
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Reviewed in the United States on June 7, 2016 by benjamin bannister
Good value, lasts forever.
Size: 22 ounce
Yup, it’s carbon. Good size, good amount, and potent. Need less than you think. No idea how I’m even going to use this much.
Reviewed in the United States on August 9, 2026 by Kara