CaribSea Arag-Alive Hawaiian Black Aquarium Gravel, 20 lbs.

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CaribSea Arag-Alive Hawaiian Black Aquarium Gravel, 20 lbs. removed from the wishlist

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Description

Biologically and mineralogically complete sand substrate for saltwater aquariums. Contains specially engineered bacteria to suppress ";new tank syndrome";. Discourages nuisance algae. Never needs replacement.

- Aids in the growth of corals
- Buffers for the life of the aquarium
- Helps maintain a proper pH of 8.2 without constant chemical additions
- Discourages nuisance algae growth

Please note that the product information displayed is provided by manufacturers, suppliers and other third parties and is not independently verified by Petco.

Specifications

SKU	2153490
Primary Brand	CaribSea
Days to Ship	Ships Next Business Day
Weight	20 LBS

Primary Color	Black
Personalized Item flag	No

CaribSea will never knowingly disappoint you. If, for any reason, your are dissatisfied with this product, call us toll free at 1-888-461-1113. Due to the complexities and variations in method and technique of aquarium keeping, the manufacturer, distributor, and vendor accept no liability associated with this product.

Reviews

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5 stars

135

4 stars

19

3 stars

2

2 stars

2

1 stars

7

Overall Rating

4.7

92 out of 165 (56%) reviewers recommend this product

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Most Helpful Favorable Review

love this stuff!

bestfishkeeeper

11 years ago

I love this sand! it makes me feel like i'm in Hawaii..... after a week it gets ...

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25 PEOPLE FOUND THIS HELPFUL

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4

Most Helpful Critical Review

Not sand it's gravel

Jay_F

7 years ago

These are small bits of gravel not sand. The color is black but has small white ...

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32 PEOPLE FOUND THIS HELPFUL

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Rating

1 - 8 of 119 Reviews

Most Recent

46 Ratings-Only Reviews

CaribSea are always great products. This Hawaiian black substrate looks amazing in the aquarium. First time using black and it is impressive.

Yes, I recommend this product.

Helpful?

It Is Magnetic, Hence it has metal in it. lets say the metal is not a issue to water quality. The issue occurs when you go to clean your glass with a algae magnet. Do yourself a favor and don't do it. Otherwise manually clean your glass.

No, I do not recommend this product.

Helpful?

This is basic black sand for saltwater that makes everything pop. It's fine enough to use for seahorses and also invertebrates, and looks amazing.

Yes, I recommend this product.

Helpful?

The fine texture allows this to stay UNDER prettier gravel. And it is gentle on the bodies of bottom dwelling creatures. I did have a lava rock on top and switched to a white rock on top because I found that its was to sharp, showed a ton of dirt, encouraged to much algae growth and the black on the bottom and a dark black ground caused me to kind of "lose" fish. I didn't see my cory cats to often, my neons hid most of the time.. so the gravel is great structurally, but consider how you will use it

No, I do not recommend this product.

Helpful?

It enhances the colors of the fish, visually more depth to the aquarium and the bonus of having nitrifying bacteria to establish the nitrogen cycle. Very pleased and would highly recommend it.

Yes, I recommend this product.

Helpful?

Great product for my Tank, didn't cloud up the tank and all my levels stayed in range.

Yes, I recommend this product.

Helpful?

This gravel is really small but definitely gravel NOT sand. It's exactly what we wanted. We didn't want a large gravel to hold ammonia. Our goldfish love to pick through it much like parrot fish on a reef. It did take a week for the cloudiness to go away. Not sure if part of the problem was our Penguin hang-on-back filter - could have been. We tried the product that came with the gravel (a real bonus!) as well as another product. But I think mostly it took some time. Not a big deal though. It was definitely worth the process. There is quite a bit of white rock mixed in with the black (probably 85%/15% black/white). Looks really nice. I'd buy it again and probably will for another larger tank.

Yes, I recommend this product.

Helpful?

Great looking sand. Just be aware that some pieces are magnetic. Will stick to glass cleaning magnet.

Yes, I recommend this product.

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1 - 8 of 119 Reviews

Questions

1 - 10 of 24 Questions

Sort by: Newest Answers

4 years ago

will this sand be ok for Nassarius Snail and sand sifting starfish?

4 years ago
Hi, I haven’t kept either species with this substrate. But I don’t feel any sharp edges and don’t believe it would harm them. It’s black color seems to bring out the colors of the fish. Good luck

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5 years ago

should i establish the salinity of my tank before adding this or should i add this first and then play around with the salinity?

4 years ago
Beneficial bacteria doesn't die from salinity changes.

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5 years ago

Can I use this in a tank with sea monkeys/brine shrimp?

5 years ago
Yes

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6 years ago

Can i use in my freshwater aquarium? Having having difficulty keeping pH up to 7.0

5 years ago
Yea you can...but will lose the chief benifit of this product. Also it is design for the chemisty of a salt water tank and to much of this to fast can shock your system and destablize it. I woyld try a dry substrate designed for freah water tanks before using this.

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6 years ago

Would this substrate work with live plants in a freshwater aquarium?

6 years ago
Honestly I would say no because plants need special nutrients for their root systems. This sand is more for cichlids and such.

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6 years ago

I’m setting up a 55 gallon salt water fish tank, can I use this sand with gobies and other sifting creatures

6 years ago

I want to add this to the pool filter sand that is in my established 75 gal cichlid tank. I think it would look cool to have a mixture of black and white. My ph readings are around 8. Will this affect the ph of my tank?

7 years ago

Can I use this gravel for clown fish?

7 years ago
Yes you can, & it will make their colors really POP & stand out !

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7 years ago

Can I use this for Cichlids tank?

7 years ago
Hi NJD pogi, We suggest that you contact your local Petco specialists for this. Thanks,

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7 years ago

Can you use this in a turtle tank?

6 years ago
Yes it's fine for turtles and not just for salt water.

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