CaribSea Super Naturals Peace River Aquarium Substrate

By CaribSea
Rated 4.75 out of 5 stars


Selected: Color:


Selected: Color:

$27.49Chewy Price
In Stock
FREE 1-3 day delivery on first-time orders over $35

About This Item


  • Contains a variety of natural-color stones to help 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

4 Customer Questions

How much is needed for a 10 gallon aquarium?
Answer by ChewyApr 05, 2022
The Peace River substrate weighs approximately 100 pounds per cubic foot. Aquarium sizes vary, but as an example, in a 20 gallon tank that measures 24 x 12 footprint, a 20 pound bag would give you about 1 ¼ Inch bed depth. A 5 pound bag would just cover the bottom to about ½ of an inch.

It says freshwater tank but the description says brackish and marine. Is it for all three.
Answer by ChewyAug 24, 2021
This substrate is suitable for freshwater, brackish, and marine aquariums.

Can I use this in a Betta tank?
Answer by ChewyJun 20, 2022
This substrate is safe for all aquariums including Bettas.

Is this a good substrate for live plants?
Answer by ChewyMay 30, 2023
This substrate is suitable for most freshwater plants.

ReviewsWrite a Review

Rated 4.75 out of 5 stars
20 Ratings
Would recommend to a friend

20 Customer Reviews

Rated 5 out of 5 stars
By Carebear on Oct 30, 2023

Works well!

I purchased this for a 20 gallon planted community tank. I'm relatively new to all this, but have done a lot of research. This substrate seems to be very good quality and working well for my purpose. Not to mention it looks nice. It does take some time to clean and even after thoroughly cleaning, the water was a tad cloudy for the first maybe 2 days. But it did clear up nicely. Now, it's only been about a week and a half but the tank seems to be thriving and water quality has been perfect.

Rated 5 out of 5 stars
By TheresaD on Jul 31, 2023

Beautiful gravel

I wanted something to brighten up my fishtank which has a black background and black substrate. This looks beautiful and gives the tank a very natural look. The small gravel works well for my nano fish as well.

Rated 5 out of 5 stars
By Anne on May 16, 2023


Absolutely gorgeous. I can't find gravel here like the sand I grew up on the beaches in Minnesota. Here it's all sugar sand or saltwater look. I love this. Was very clean also. Am buying more.

Rated 4 out of 5 stars
By MajPayne on Dec 26, 2022

Good price compared to other sellers

I am a big fan of on time delivery for my orders. That being said i gave 4 stars because of the missed delivery date but to be honest no fish was harmed because of it. The price was better than every other seller that i checked online and i checked many! The discription was accurate the size perfect for the next aquascaping idea.

Rated 4 out of 5 stars
By Joan on Apr 16, 2023

Not good for Africa frogs

Stones to small for frogs to see food. They have poor eyesight can't find the food

Rated 5 out of 5 stars
By JillS on Dec 4, 2022

Just what I needed

Exactly what I was hoping for. Coarser than sand, but finer (about half the size) of average gravel. Pretty clean, didn't rinse it and no problems.

Rated 4 out of 5 stars
By rnogle on Jan 23, 2023

Good natural aquarium gravel

Very attractive and easy to clean just a little pricey.

Rated 5 out of 5 stars
By Sam on Aug 16, 2022

Versatile, Natural Bettas love it!

I love this stuff. I have several nano tanks with this substrate, my Bettas love it.. It is smaller sized pieces. Nice natural color variation. It reflects the light in the aquarium, as opposed to a black or dark colored substrate, that absorb the light.

Rated 5 out of 5 stars
By AquaLover on Jun 12, 2022

Great substrate!

Great substrate for bottom dwellers. I needed to switch to a finer substrate when I got Corydoras, but I didn't want traditional sand because of how difficult it is to vacuum and how it can stir up easily and clog filters. After searching around I was excited to find this type of sand. It's sort of a cross between gravel and sand, and very smooth. It doesn't cloud up, is easy to vacuum, easy to grow plants in and my Corys and Pleco love it! The natural colors are beautiful in any aquascape.

Rated 5 out of 5 stars
By Lxcn on May 1, 2022

Absolutely fantastic!

I was concerned that the pieces were too small when I first received it, thought it would be difficult to deal with (like sand) but it's the opposite. This is the best gravel I've ever used. I have an algea problem and usually by week 2 my gravel is covered in it but it wasn't. Not sure why but I'll take it! Also thought it would clump up when I put it in but it fell into place beautifully and evenly. Even when I cleaned it up it was extremely easy to move around and even out. Also it just looks beautiful! I highly recommend this.