Diamond Blend®

Try our Diamond Blend aquarium carbon and ammonia neutralizing crystals. Look for it in our filter media section.
  • Try our Diamond Blend aquarium carbon and ammonia neutralizing crystals. Look for it in our filter media section.
  • 50 oz Diamond Blend®
Product No. PA0391

$10.49 - $16.19

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Aquarium carbon and ammonia neutralizing crystals combo.

Diamond Blend® Premium Activated Carbon and Ammonia-Neutralizing Crystals are ideal for new aquariums.

This special formulation of new faster-acting Black Diamond® and super-effective White Diamond® cleans and conditions aquarium water, ridding it of dissolved organic waste and odors as it removes toxic ammonia and chloramines. Outperforms other blends by as much as 4 to 1.

Diamond Blend® is rated 5.0 out of 5 by 6.
Rated 5 out of 5 by from Dimond blend This is a long lasting media that also helps control ammonia
Date published: 2015-12-21
Rated 5 out of 5 by from It works I really can't speak to the ammonia reducer but the carbon works great to reduce smell and produce crystal clear water.
Date published: 2015-11-20
Rated 5 out of 5 by from Marineland quality products I was crazy about to keep my tank clean and clear, after many tries with differents companies I bought my filter on Marineland. Now I`m sooooooooo happy, my tank is crystal clear and my friends let me tell you. Do not waist your money, all you need for fishes Marineland has it. Thank you sooooooooooo much
Date published: 2015-06-11
Rated 5 out of 5 by from Works better than expected Cleared up cloudy fish tank in hours, has kept it clear for days
Date published: 2015-02-02
Rated 5 out of 5 by from Free Shipping? Good Price if you have the $50.00 Dollar purchase to get the free shipping!
Date published: 2014-07-24
Rated 5 out of 5 by from Great price and works well! I purchased this product to decrease the number of filter changes and to get rid of disposable filters. Works great!
Date published: 2013-12-14
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Can i use this instead of just carbon even when the ammonia goes down or do i have to take it out and swich back to carbon

Asked by: Castro
Yes, you can continue to use this, even after the ammonia levels have gone down, but at the next filter media change, you may get more benefit from using carbon alone. It depends on the types, quantities and sizes of fish you are housing. BREX
Answered by: BREX
Date published: 2017-12-18

Can I use this in my 350 bio wheel filter instead of or with my regular cartrage filter? 

Asked by: Kay1998
Yes, you just need to put it in a media container or nylon mesh bag of some sort. BREX
Answered by: BREX
Date published: 2017-10-20

How do you use it? I'm trying to add more water to my tank but I know it has chlorine and stuff so how would I use this to take all the nasty stuff out

Asked by: gwzmnem
You use a water conditioner such as Marineland Aquarium Conditioner to do that for you. With carbon, you add it to a mesh bag of some sort or media container, and place it in your filter system. It removes heavy metals, discolorations, odors, and chemicals like medications for you. BREX
Answered by: BREX
Date published: 2017-08-29

How to use for a 60 gallon tank

Asked by: John B
Size of tank does not matter, you simply add it to a mesh bag of some sort and place it in the filter. Generally, 1/4 cup per 100 gallons. BREX
Answered by: BREX
Date published: 2017-07-18

Can I use this in my filter after pouring in a bottle of Tetra Safe Start? I heard that the "crystals" this has to eliminate ammonia is removing the ammonia the beneficial bacteria in TSS need in order to grow.

Asked by: sfsdf2313123
If you are using SafeStart Plus, you don't need zeolite as well. The TSS Plus will take care of the ammonia. However, you can use this product once the ammonia level has been reduced to keep it down without adding more of the SafeStart Plus. This product will not remove ammonia fast enough to starve out the bacteria. BREX
Answered by: BREX
Date published: 2017-06-16

I have a gold fish pond in back yard. Approx, about 1100 gal with a sand filter system. I have purchased the ammonia crystals,wondering if i can just add the crystals to the sand?

Asked by: Kaye
It would be best to place them in a mesh bag of some sort and then place them in the filter so that you can remove them periodically and put new ones in. These need to be replaced at least once a month. BREX
Answered by: BREX
Date published: 2017-06-05

how do you use this product? is it used gravel in the bottom of the aquarium. For an new aquarium? We empty 3 jars of this product as gravel and the bottom is completely black.

Asked by: clubpain
Hi clubpain. This product is meant to go in filter or media cartridges to help remove chemical impurities and ammonia. It should not be poured into the bottom of the tank as substrate. As it will need to be changed on a monthly basis similar to filter cartridges.
Answered by: Customer Service
Date published: 2017-05-31

What I mean is can water filtered through zeolite chips be consumed by humans. Not humans eating the zeolite chips. 

Asked by: Broham
I knew what you meant - we have not tested zeolite for this purpose, and therefore, cannot recommend it. BREX
Answered by: BREX
Date published: 2017-05-10
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