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CaribSea Arag-Alive Hawaiian Black Sand 10 lb


Item #: CS01797

In Stock

CaribSea’s Arag-Alive!™

You can now bring the world’s most exotic reefs into your home with CaribSea’s Arag-Alive!™ substrates. Eight environmentally accurate ecoscapes, developed through CaribSea’s cooperation with public aquariums and zoological parks where authenticity is a must, Arag-Alive!™ makes any aquarium uniquely yours. Arag-Alive!™ makes it easy to set up an aquarium. It’s ready to work, clears quickly, and contains millions of live bacteria to cycle super fast and create a natural biological balance. Arag-Alive!™ suppresses the dreaded “new tank syndrome”, compresses the ammonia cycle, and discourages nuisance algae. In fact, independent labs prove Arag-Alive!™ cycles days faster than other brands of live sand. That’s what makes Arag-Alive!™ the choice of new aquarists and maintenance companies where speed of set up, beauty, and reliability are demanded.

About CaribSea Live Products
When setting up an aquarium with CaribSea`s live products please do not rinse the substrate! The susbtrate should be carefully placed on the bottom of the aquarium, and your preconditioned water should be added carefully. Cloudiness will be greatly reduced if a plate or empty bag is used to stop the water being added from disturbing the substrate underneath.

FAQ and Tips
Do I rinse Arag-Alive!™ before use?
No! Rinsing Arag-Alive!™ could harm the spored beneficial bacteria in the product.

Can I reseal and store unused Arag-Alive!™ for later use?
Yes, if sealed tightly Arag-Alive!™ will still remain effective for another couple months.

Hawaiian Black Specifications
  • Typical Grain Size: 0.25-3.5mm
  • Average Density: 80 lb/ft

Sand Bed Calculator

Use our CaribSea-powered calculator to find out exactly how much sand you need.

Manufacturer information

At CaribSea we take aquariums seriously. Since 1972 we have supplied hundreds of public aquariums, zoos, aquaculture facilities, public and private institutions, and hundreds of thousands of dedicated aquarists with the highest quality marine and freshwater products. CaribSea has been in the forefront of the principle that substrates are a piece of equirment, not just a decorative afterthought. Caribsea substrates are as precisely engineered as any piece of advanced equipment used by today`s hobbyists and professionals. CaribSea products are the chemical support, biological filtration, and biodiversity backbone for many of the most spectacular aquatic displays ever created. We are now celebrating our 35th year in the business, and our product line has continued to grow; making CaribSea your aragonite source and so much more.

5 Stars


Reviewed on
May 13, 2020

Yes, I would recommend this.

Beautiful sand

Pros: Great for a different look than regular sand

Cons: None

Great black sand high quality

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Reviewed on
May 01, 2020

Yes, I would recommend this.

Awesome sand

Pros: The overall color and aid with cycling

Cons: None

A great sand that provides contrast in the tank and aids with cycling.

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Reviewed on
July 15, 2019

Yes, I would recommend this.

Beautiful Sand!

Pros: Looks great! You don't have to clean it. Put in tank right from the bag.

Cons: A little expensive, however well worth the price.

I used this sand to setup my small 7.5 gallon saltwater tank. Looks great! Will be adding fish in a few weeks.

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Reviewed on
April 20, 2019

Yes, I would recommend this.

Very nice looking

Pros: Attractive and effective at faster cycling.

Cons: Can be picked up by magnetic glass cleaners, which can easily scratch aquarium glass.

I love the look of this Black Sand in my 10 gallon Nano tank! It makes a nice contrast with the surrounding colors. I was very surprised that some of the particles in it are highly magnetic, and cling to magnetic glass cleaners. It still looks very nice, and helped cycle the tank very quickly.

Was this review helpful? 1 0


Reviewed on
March 02, 2018

No, I would not recommend this.

Looks good, Algae problem

Pros: Looks Good

Cons: Algae Problem

This sand looks great. I love the black sand. When I use it though, hair algae grows all over it. That is a problem. So 3 stars

Was this review helpful? 0 2


Reviewed on
November 30, 2017

Yes, I would recommend this.

CaribSea Arag-Alive Great Product

Pros: none

Cons: none

I would recommend this product when starting your new tank or adding additional sand to your tank I have used Caribsea for sometime and never had a problem

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Reviewed on
November 30, 2017

No, I would not recommend this.

Black sand

Not to happy with it it looks great but as far as helping with t he ph buffering not very good for that

Was this review helpful? 0 3


Reviewed on
October 15, 2017

Yes, I would recommend this.


Pros: Looks amazing

Cons: Hard to determine if its dirty or not, but pay attention and it wont matter

Great Product looks amazing as it doesnt reflect the light...

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Reviewed on
August 13, 2017

Yes, I would recommend this.


I like the look of the black sand

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Reviewed on
May 10, 2017

Yes, I would recommend this.

Shiney black

Its not a dull and full black sand, its shiney and has a couple other nice colors in it. Ordered 3 bags and was plenty enough for my red sea 250. Black on black with purple rocks looks pretty good and the corala under blues pop like crazy.

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