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Carib Sea

Carib Sea Create a Supernatural Experience: Super Naturals Crystal River Sand re-Creates The Natural World in Your Aquarium with its Smooth, Fish-Friendly Grains.

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Pattern Name: Crystal River


Size: 5lb (Pack of 1)


Features

  • Create a supernatural experience: Super Naturals Crystal River Sand re-creates the natural world in your aquarium with its smooth, fish-friendly grains.
  • Fish-friendly and natural: Made with smooth grains that reduce built-up detritus, this substrate is safe for all types of aquariums.
  • pH neutral and safe: This sand is pH neutral, ensuring it is safe for all types of freshwater and saltwater aquariums, promoting a stable environment.
  • No artificial additives: Made without paints, dyes, or coatings, Super Naturals Crystal River Sand ensures a natural and safe environment for your aquatic life.
  • Helps reduce nitrates: The sand helps reduce nitrate levels in the aquarium, promoting healthier water conditions for fish and plants.

Description

CaribSea Super Naturals Crystal River Sand for Aquarium – 5 lb is the perfect substrate for creating a natural and healthy environment in your aquarium. Made with smooth, fish-friendly grains, this sand reduces the build-up of detritus, helping maintain a clean and stable tank. It’s pH neutral, making it safe for all types of aquariums, including freshwater and saltwater tanks. The sand is free of paints, dyes, and chemical coatings, ensuring a safe, natural environment for your fish and plants. Super Naturals Crystal River Sand helps improve water quality and supports a healthy ecosystem. Whether you’re creating a new setup or upgrading an existing aquarium, this sand offers a natural look while supporting the biological processes necessary for thriving aquatic life. Made in the USA, it is easy to use and enhances the overall health of your aquarium, promoting a stable, thriving environment.

Product Dimensions ‏ : ‎ 1 x 1 x 1 inches; 1 pounds


Item model number ‏ : ‎ 05840


Date First Available ‏ : ‎ April 30, 2010


Manufacturer ‏ : ‎ TopDawg Pet Supply


Best Sellers Rank: #190,538 in Pet Supplies (See Top 100 in Pet Supplies) #188 in Aquarium Sand


#188 in Aquarium Sand:


Customer Reviews: 4.5 4.5 out of 5 stars (2,022)


Item Weight: 1 pounds


Manufacturer: TopDawg Pet Supply


Item model number: 05840


Date First Available: April 30, 2010


Item Package Dimensions L x W x H: 8.74 x 7.24 x 2.24 inches


Item Dimensions LxWxH: 1 x 1 x 1 inches


Item Weight: 16 ounces


Brand Name: Carib Sea


Target Audience Keyword: fish


Directions: Use as directed


Color: white


Size: 5lb (Pack of 1)


Material: cotton


Age Range Description: All Life Stages


Number of Items: 1


Included Components: 1 bag


Specific Uses for Product: Active


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Oct 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Nice sand
Review Image by Jill
Review Image by Jill
This is a nice color of sand and looks good under the light. It is also nice that the waste and debris does not get mixed in it, so cleaning is pretty simple with a light gravel vacuum. The liquid that comes with the sand to help with any cloudiness also worked well; within 24 hrs it was clear. One bag covered the bottom of my five gallon tank (an approximate 11 x 10 surface) and is about two inches deep. ... show more
Reviewed in the United States on October 30, 2015 by Jill
    • Beautiful Substrate
There are two versions of the Crystal River Sand from Caribsea. One is just the sand. The other comes packed pre-cultured with nitrifying bacteria. The version that comes pre-cultured with nitrifying bacteria will come in the same plastic bag, but the sand will be moist. And it is not recommended that you rinse it out. Within the bag, you will find two small packets. One is a dechlorinator. The other contains a floculant, to help clear cloudy water. If you are starting a new tank, this is the one that I would recommend. It helps eliminate deadly ammonia spikes. Naturally, you will still want to start with hardy fish until the tank stabilizes. This is a beautiful substrate. The grain size will range from fine to medium. The size is large enough that you can vacuum the bottom without losing too much of your substrate in the siphon hose. This is the ideal size, in my opinion, for most situations. The grains are small enough so that fish feces and other debris cannot work their way into the substrate. And yet, large and heavy enough not to get too much of it get siphoned out during tank maintenance. Some fish species, like Corydoras and German Rams prefer a fine, sand substrate like this. "Crystal" comes from some small, clear grains that catch the light and actually shine. Almost like a sparkle, but not bright. You can use this in a fish-only tank or you can even use this as the substrate for a planted tank. This could very well be the perfect substrate, except for one thing. If you have bright lights, algae will grow on this sand. And that ruins the beauty of it. Darker sand still grows algae, but hides it. Bottom line. If you can keep your tank clean, this is perfect for you. If you are slack on maintenance, pick a darker sand. There is a black sand from the same manufacturer called Tahitian Moon. It is slightly finer and it hides algae very well. Oh, and one other thing. If you keep rainbows, they will tend to exhibit their best colors when their sand is dark. Update: I bought a five-pound bag to replace the small amount that I lose through the gravel vacuum hose during each water change. Some will leave the tank when you get rid of unwanted plants too. ... show more
Reviewed in the United States on June 29, 2014 by citan-uzuki
    • love this sand
I bought this sand for my kuhli loaches for hiding. I did half gravel and half sand. I loved the sand so much I did the entire tank with sand. I used two bags for a 20 gallon but am ordering more. It didnt make the water cloudy the first time and a tiny bit cloudy the second time but cleared very quick. I opened the bag put it under the water and poured the sand it. Helped eliminate clouding and easier to control. very pleased with this sand ... show more
Reviewed in the United States on March 24, 2022 by Amazon Customer
    • Pretty crystal sand for my fishes.
Review Image by P. Tanusukma
Review Image by P. Tanusukma
Review Image by P. Tanusukma
Sand is beautiful. A bit beige mixed with white, but the crystals are still very pretty. A bit hard to wash without a hose, but a good few rinses in a bucket like washing rice, helped. Just don't dump the water in the drain as its bad if sand is stuck in the drains! I toss the cloudy water into the streets instead. I like the extra little packet of bio-magnet clarifier. It helped the water clear up faster. Nice touch. This filled a fair thin layer over half my elongated 35 gallon tank. You can see in photos. I will need 3 more bags if I want a thicker 1 inch layer to fill my entire tank. Luckily, half looks pretty enough. I have not tried cleaning it yet, so a bit worried that sand might get sucked in my pump. Guess I'll know on cleaning day. Hope it works out. ;) ... show more
Reviewed in the United States on September 8, 2020 by P. Tanusukma
    • Dust Free sand.
Great product for my aquarium. Doesn't need to be rinsed.
Reviewed in the United States on February 24, 2026 by Jeffrey C
    • Very nice sand
At first I didn't like the color of this sand inside the bag, but once I got it in my tank it really gave it some personality. The color is just right, it looks natural and my fish really seem to enjoy it. Must be washed and rewashed, and washed one more time for good measure to get most of the dust and floaties out, but otherwise it's pretty great. 10 pounds/2 bags filled the bottom of my 20 gal long, despite how small the bags appeared at first. Great product, will be purchasing more in the future. ... show more
Reviewed in the United States on January 3, 2014 by ally
    • Cycle it much, much longer.
Nice sand, lays out good, nice and tight. Leaves very little room for waste to settle into. It did stress my betta out, and pretty sure it gave the lil guy fin rot. I followed the instructions, except I waited 3 hours or so before adding my fish.
Reviewed in the United States on June 5, 2020 by SurfRs
    • Follow the directions. Beautiful addition to my tank.
Review Image by Laura
I received this aquarium sand yesterday. I bought it primarily because I purchased five assassin snails and the love sand. I have a 50 gallon established freshwater tank. I already have soils and gravel at the bottom for my live plants, but assassin snails need sand, and this sand had great reviews. Cleaning it was easy and I just followed the directions on the bag. Waited 30 minutes for the sand to settle before reintroducing the fish to the aquarium. My Corydoras are having a field day! I am infested with mystery snails, so I’m excited to see if assassin snails help with the population and love seeing the pretty sand in my tank. Highly recommend. ... show more
Reviewed in the United States on November 10, 2020 by Laura

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