Aquarium Gravel, Rocks & Sand

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Pure Water Pebbles Coated Aquarium Gravel, Jet Black, 5-lb bag

Rated 3.7914 out of 5 stars
139
$5.49Chewy Price

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CaribSea Super Naturals Gemstone Creek Aquarium Substrate, 5-lb bag

Rated 3.5 out of 5 stars
6
$5.99Chewy Price

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Aqua Terra Aquarium & Terrarium Sand, Natural White, 5-lb bag

Rated 3.9915 out of 5 stars
118
$5.49Chewy Price

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GloFish Fluorescent Aquarium Gravel, Black, 5-lb bag

Rated 4.5882 out of 5 stars
17
$5.68Chewy Price
$7.09List Price

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Activ-Flora Planted Aquarium Substrate, Lake Gems, 20-lb bag

Rated 4.0678 out of 5 stars
59
$24.99Chewy Price

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CaribSea Eco-Complete Planted Aquarium Substrate, Black, 20-lb bag

Rated 4.5238 out of 5 stars
42
$25.91Chewy Price
$34.99List Price

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CaribSea Super Naturals Peace River Aquarium Substrate, 5-lb bag

Rated 4.75 out of 5 stars
16
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Aqueon Plant & Shrimp Aquarium Substrate, 5-lb bag

Rated 3.7692 out of 5 stars
13
$13.71Chewy Price
$15.99List Price

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Pure Water Pebbles Natural Aquarium Gravel, Cumberland River, 5-lb bag

Rated 4.2929 out of 5 stars
99
$8.99Chewy Price

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CaribSea Super Naturals Jungle River Aquarium Gravel, 20-lb bag

Rated 5 out of 5 stars
4
$19.99Chewy Price

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Exotic Pebbles Black Bean Pebbles, 20-lb bag

Rated 4.4348 out of 5 stars
23
$22.99Chewy Price
$25.99List Price

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CaribSea Super Naturals Carolina Creek Aquarium Gravel, 40-lb bag

Rated 5 out of 5 stars
4
$33.99Chewy Price

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Nature's Ocean Bio-Activ Live Aragonite Saltwater Aquarium Sand, Natural White #1, 20-lb bag

Rated 3.5263 out of 5 stars
19
$27.38Chewy Price
$27.50List Price

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CaribSea Seaflor Special Aragonite Aquarium Sand, 40-lb bag

Rated 4.8333 out of 5 stars
6
$26.99Chewy Price
$46.99List Price

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Spectrastone Premium Aquarium Gravel, 5-lb bag, White

Rated 2.3333 out of 5 stars
3
$5.99Chewy Price

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Stoney River Cherokee Pebble Premium Aquarium Gravel, 5-lb bag

$6.99Chewy Price

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Galapagos Aquarium Sea Glass, 4-lb bag, Sage Green

Rated 3.9091 out of 5 stars
11
$10.99Chewy Price
$14.99List Price

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GloFish Fluorescent Aquarium Gravel, White Frost, 5-lb bag

Rated 5 out of 5 stars
6
$6.30Chewy Price
$7.09List Price

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CaribSea Super Naturals Zen Garden Aquarium Substrate, 20-lb bag

Rated 4.4 out of 5 stars
5
$21.99Chewy Price

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Pure Water Pebbles Frosted Aquarium Gravel, Rainbow, 5-lb bag

Rated 3.5862 out of 5 stars
29
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$5.59List Price

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CaribSea Super Naturals Crystal River Aquarium Substrate, 5-lb bag

Rated 4.4286 out of 5 stars
7
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Exotic Pebbles Natural Washed Black Gravel, Black, 20-lb

Rated 3.7333 out of 5 stars
15
$22.99Chewy Price
$25.99List Price

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SunGrow Betta & Turtle Glass Pot for Aquarium Live Plant Reptile Terrarium Tank Decor, 2 count

Rated 4 out of 5 stars
1
$8.95Chewy Price
$10.99List Price

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Pure Water Pebbles African Cichlid Aquarium Substrate, Malawi Mix, 20-lb bag

Rated 4.6 out of 5 stars
20
$19.99Chewy Price
$22.99List Price

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Spectrastone Permaglo Rainbow Premium Aquarium Gravel, 5-lb bag

$6.99Chewy Price

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Pisces USA Betta Aquarium Jewels, Emerald, 17-oz bag

Rated 3.5862 out of 5 stars
29
$6.95Chewy Price

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Stoney River Black Beach Pebbles Premium Aquarium Gravel, 5-lb bag

Rated 5 out of 5 stars
1
$11.99Chewy Price

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Lifegard Aquatics Lifegard Dragon Songpi Ohko Rock 25 Gallon Kit

Rated 3 out of 5 stars
1
$51.99Chewy Price
$68.75List Price

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CaribSea Super Naturals Sunset Gold Aquarium Substrate, 50-lb bag

Rated 3 out of 5 stars
2
$43.99Chewy Price

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Underwater Treasures Decorative Marbles Fish Ornament, 100 count, Purple

Rated 5 out of 5 stars
1
$3.56Chewy Price

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CaribSea Super Naturals Moonlight Sand Aquarium Substrate, 50-lb bag

Rated 4.6667 out of 5 stars
3
$54.99Chewy Price

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Exotic Pebbles Jade Bean Pebbles, 20-lb bag

Rated 4.3478 out of 5 stars
23
$22.99Chewy Price
$25.99List Price

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SunGrow Shrimp Mineral Rocks for Molting, Aquarium Calcium Supplement, 1.8-oz

Rated 4.5 out of 5 stars
8
$7.95Chewy Price
$15.99List Price
$7.55Autoship Price

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Pure Water Pebbles Bio-Activ Live African Cichlid Aquarium Substrate, Rift Lake, 20-lb bag

Rated 4.6786 out of 5 stars
28
$26.99Chewy Price
$27.02List Price

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CaribSea African Cichlid Mix Sahara Aquarium Gravel, 20-lb bag

Rated 5 out of 5 stars
1
$21.99Chewy Price

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Spectrastone Ocean Beach Premium Aquarium Gravel, 5-lb bag

$6.99Chewy Price

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Aquarium Gravel, Rocks & Sand

Finding the best fish sand and gravel to create the perfect aquarium for your new fish is a very important. The right substrate, or what is more commonly known as the aquarium rocks or sand that lines the bottom of your tank, can make a world of difference. Aquarium gravel or sand for your fish tank will enhance the look and feel of your marine habitat. Larger aquarium stones or gravel should be avoided. Choose a finer gravel, perhaps pea-size aquarium rocks, if you want to include freshwater plants. Fine gravel will provide the plant roots a more stable environment. Aquarium gravel comes in a variety of colors and particle sizes so there are many varieties readily available to match your tank decor. Depending on the size of your fish, you can decide what sort of gravel will work best for your aquarium. Sand is definitely better for tropical fish and gravel is best for cold water fish. Shop the best fish sand and gravel for your aquarium habitat here on Chewy.com and let the fun begin.

Related Categories: Aquarium Artificial Plants, Aquarium Backgrounds and Wood, Aquarium Ornaments and Accents, Aquarium Gems and Accents, Aquarium Lighting and Motion, Fish Tank Decor and Accessories

Frequently Asked Questions about Aquarium Gravel, Rocks & Sand

Can I use both sand and gravel in my aquarium?

You can use both sand and gravel in your aquarium, but many experts recommend against mixing them together. If you choose to use both, try putting them in different areas of the tank. Sand can sometimes cause problems in aquariums, particularly those with live plants. It can become compacted and strangle plant roots, and packed sand can make it hard for burrowing fish to hide. Sand may also not work well with under gravel filters, and too-fine sand may clog regular filters, as well.

How do you clean aquarium rocks and gravel?

You can clean aquarium rocks and gravel in two different ways, either with or without a gravel vacuum. If you have a gravel vacuum, the process is fairly easy, and your vacuum should include good instructions for proper use. If you do not have a gravel vacuum, remove your fish with half their water and store them in a clean, fish-safe bucket or extra tank. Then, dump the gravel into a bucket and use a showerhead or hose to rinse it thoroughly, draining repeatedly until the water runs clean. You can also use this method to clean large aquarium rocks, and new aquarium gravel should be cleaned this way before use, too. You can now reassemble and refill your tank with your fish, their old water and new dechlorinated water to maintain a healthy bioactive balance.

How deep should the gravel and sand be in a fish tank?

The gravel and sand in a fish tank should be just deep enough for aesthetics and proper function. A gravel depth of 2 to 3 inches is ideal for most aquariums, as this depth is enough to anchor plants and/or cover an under gravel filter. For sand, a depth of 1 inch is recommended for most tanks. Larger aquariums may need a slightly deeper substrate, with 3 to 4 inches of gravel or a 2-inch depth of sand recommended.

How often should I change aquarium sand?

You should not change aquarium sand too often, as it can last for a long time with proper maintenance. Changing substrate too often can also throw off the delicate balance of your aquarium and unnecessarily stress your fish. Many aquarists recommend changing the sand once a year or even less. However, very old sand may eventually start to alter the nutrient levels in your tank, so it's a good idea to replace your sand at least every 4 to 5 years.


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