CaribSea Super Naturals Moonlight Sand Aquarium Substrate, 50-gal tank

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$73.69 Chewy Price
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Pay in 4 interest-free payments of $18.43. .

About This Item

Details

  • Cool and bright, natural-looking sand helps your finned friend feel right at home.
  • Pre-washed, pH neutral and promotes the growth of beneficial bacteria colonies.
  • Creating a natural environment for your fish helps reduce aggravation caused by reflections in the bottom of your tank.
  • Great for use in marine and brackish aquariums (sold separately) with proper buffering.
  • Each grain measures approximately 0.25–1.0 millimeters in size.

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Questions & Answers

5 Customer Questions

The sand had a floral/ soapy smell to it. I took it all out because I was nervous. What is that? Is it safe?

Answer by Lemonpie • May 13, 2024
You might have not washed it before you put it in the tank

can the sand be used in freshwater tanks

Answer by Chewy • Jan 06, 2022
The CaribSea Super Naturals Moonlight Sand can be used in freshwater tanks.

Does this sand look white or grey when wet?

Answer by Chewy • Jan 30, 2022
The sand will look light beige to white when wet. It will not look grey.

Can this sand be used in regular Aquarium’s

Answer by Chewy • May 06, 2022
This sand is great for use in marine and brackish aquariums.
Reviews
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4.4
Rated 4.4 out of 5 stars
25 Ratings
Terms & Conditions

14 Customer Reviews

Rated 1 out of 5 stars
By Shane on Jul 5, 2025

40lbs not 50

Usually it’s 1lb of sand per 1 gallon of tank water. This bag is 40lbs. Extremely false advertising. Buy somewhere else it’s cheaper.

Usually it’s 1lb of sand per 1 gallon of tank water. This bag is 40lbs. Extremely false advertising. Buy somewhere else it’s cheaper.

Rated 4 out of 5 stars
By William on Sep 23, 2025

Great place to.buy

Great products and really good price.

Great products and really good price.

Rated 3 out of 5 stars
By Angelina on Jan 1, 2025

Bag broken open

The bag was broken open and I feel who ever shipped it knew. I ordered two bag of sand and one was bagged in what appeared to be a trash bag and was spilling sand

The bag was broken open and I feel who ever shipped it knew. I ordered two bag of sand and one was bagged in what appeared to be a trash bag and was spilling sand everywhere. This is my first ever order from Chewys and I was a bit disappointed.

Rated 4 out of 5 stars
By Jon on Oct 7, 2024

Lots of black particles in it

Washed this and filled the tank and there is a lot of blck particles in it. The filter stirs it up and wind up with a black line of particles in the tabk

Washed this and filled the tank and there is a lot of blck particles in it. The filter stirs it up and wind up with a black line of particles in the tabk

Rated 5 out of 5 stars
By Katy on Mar 14, 2024

Great turtle substrate

Got this for my African sideneck turtles and they love playing and burying themselves in it. Will definitely be purchasing more in the future when I need to replenish

Got this for my African sideneck turtles and they love playing and burying themselves in it. Will definitely be purchasing more in the future when I need to replenish the sand.

Rated 5 out of 5 stars
By John on Jun 17, 2024

Sand looks more natural

We are very happy with the look of the sand.

We are very happy with the look of the sand.

Rated 5 out of 5 stars
By Diana on Sep 18, 2023

First time turtle owner

All of the aquarium stuff is so new to me and this was a very user friendly situation. I was so nervous about the water being cloudy for weeks at a time, all these

All of the aquarium stuff is so new to me and this was a very user friendly situation. I was so nervous about the water being cloudy for weeks at a time, all these intense stories I had read about sand substrates in general, I did what I thought was appropriate for rinsing and when I put the sand into the tank it was slightly cloudy and I added the clarifier as instructed. I did everything as instructed, I have this irrational fear I'll kill my little turtle with every new thing I do to give it a better quality of life. All that to say the water cleared about within 24 hours , my turtle is still alive and swimming around as usual, and the little guy walks on the bottom now without slipping on the glass. This sand is dummy approved, I'm the dummy

Rated 1 out of 5 stars
By Austin on Dec 19, 2023

False advertisement

20% less sand than advertised. It's actually a 40 lb bag.

20% less sand than advertised. It's actually a 40 lb bag.

Rated 5 out of 5 stars
By Perry on Dec 24, 2023

Great product!

Perfect sand not to coarse, not to fine.

Perfect sand not to coarse, not to fine.

Rated 5 out of 5 stars
By David on Feb 15, 2023

Nice product, nice shipment.

Sand arrived in a reasonable amount of time, and appears to be a very good product. I rinsed the sand before putting it in the tank and saw very little coming off

Sand arrived in a reasonable amount of time, and appears to be a very good product. I rinsed the sand before putting it in the tank and saw very little coming off. It was laready clean. As a result, I wasn't very thourough with the last bags. Still tank only clouded mildly during filling and cleared quickly.