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Fish Supplies/
Aquarium Sand, Gravel & Substrates

White Aquarium Sand, Gravel & Substrates

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Imagitarium Aquarium Gravel Substrate
(35) reviews
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Aquarium Stone Gravel Accent Mix
(1) reviews
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Imagitarium Aquarium Sand Substrate
(41) reviews
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CaribSea Arag-Alive Special Grade Sand
(43) reviews
$25.49 was $33.99

CaribSea Seaflor Special Grade Reef Sand Substrate
(22) reviews
$45.99
CaribSea Florida Crushed Coral Substrate
(17) reviews
$30.99
Nature's Ocean Bio-Activ Live Aragonite Reef Sand 0.1-0.5mm
(12) reviews
$27.50 was $35.99
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CaribSea South Seas Base Rock
(27) reviews
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Nature's Ocean Aragonite Sand
(17) reviews
$17.49
Nature's Ocean Bio-Activ Live Aragonite Reef Sand 0.5-1.7mm
(19) reviews
$20.49
CaribSea Ocean Direct Original Grade Caribbean Live Sand Substrate
(4) reviews
$35.99
Hydor Rings in Sintered Quartz BIO-RINGS for Organic Substrate, Fresh and Marine Water
(0) reviews
$7.99
CaribSea Ocean Direct Fine Oolite Caribbean Live Sand Substrate
(10) reviews
$35.99

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Related Articles & Questions

Home & Habitat
Aquarium Substrate: Complete Guide for Fish Tanks
Choosing the right substrate for your aquarium is important and provides an area for beneficial bacteria to grow which keeps your aquatic environment safe.
Updated on June 19th, 2026
Home & Habitat
Freshwater Aquarium Plant Maintenance Guide
Learn how to pick the right aquarium plants, substrate, lighting, and fertilizers to ensure that your aquarium plants thrive and stay healthy.
Updated on July 17th, 2026
Home & Habitat
Aquarium Hardscape: The Complete Setup Guide
Discover how to hardscape your aquarium here at Petco. Visit Petco and check out aquarium hardscape ideas, solutions and much more for your fish.
Updated on July 17th, 2026
Product Guides
How to Use an Aquarium Gravel Vacuum
Gravel vacuuming helps remove solid waste from your substrate. Learn about the different types of gravel vacuums available & how to clean your fish tank.
Updated on June 19th, 2026
Care Sheets
Live Rock & Sand: Setup, Curing, & Care for Thriving Reef Tanks
Learn how to care for live rock & sand. Live rock serves as a platform for coral and invertebrates and provides a surface for beneficial bacteria to live.
Updated on October 23rd, 2025
Vet Q & A
Is river sand safe to use in a Betta fish tank? What are the risks?
Thanks for using Petco Pet Education Center, formerly Petcoach! Ideally, no. It is better to use coarse small rocks instead of sand and in general it would be better to get them from the store where they come already clean and free of other organisms which may affect the environment of the tank. Good luck!
Updated on September 24th, 2025
Training & Behavior
What substrate is safe for African Dwarf Frogs in a planted tank?
That's terrific news! It is great to read of your frog's recovery. Most keepers will keep a bare bottom tank. This will prevent ingestion of substrate and makes finding food easier for the frogs. It also makes it easier to keep the tank clean. Sand would be fine. If they inadvertently ingest some, it should pass easily. If you decide on gravel or river rock, make sure it it large enough to prevent ingestion.
Updated on September 24th, 2025
Vet Q & A
Is beach sand safe for my freshwater fish tank after cleaning?
You can, however it isn't as simple as collecting a few bucketsful and dumping them in your tank. You will need to properly clean the sand to remove impurities and parasites. This involves soaking the sand, water changes, more soaking amd more water changes. It may take several weeks. There are videos you can watch on the bigger video hosting sites. It is much easier, and safer for your fish, to buy sand that has been prepared already.
Updated on September 24th, 2025
Vet Q & A
What plants and gravel should I use for my 20-gallon freshwater tank?
Our Standard Aquarium Plant Pack provides a convenient solution for your dilemma. This package includes Micro Sword or Dwarf Hairgrass, Anubias Nana or Anubias Barteri Round Leaf, Java Fern, Red Cryptocoryne or Green Cryptocoryne, Water Sprite, Hornwort, and Cabomba. http://www.liveaquaria.com/product/prod_display.cfm?c=768+2145+2146&pcatid=2146 A substrate specifically designed for live aquarium plants such as CaribSea Eco-Complete Plant Substrate is recommended for long-term success. http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=9087 Be sure to provide proper lighting conditions by employing aquarium light fixtures specifically designed for planted aquarium use.
Updated on September 24th, 2025
Vet Q & A
Why is my fish tank getting rust colored algae after adding sand?
Sand substrate is always a problem as it promotes decay and anaerobic bacteria. If you need sand in a tank for a fish species (none of the ones you mentioned above actually need sand) you should not use it in the whole aquarium , but only in a small spot to accomodate the fish. Rust-colored spots on the glass and gravel are due to diatom algae. They likely were brought in with the silicates in the sand.Diatom algae need the silicates to make a shell they carry around with them. Remove the silicates, and the algae should die. Removing silicates can be done with a silicate and phosphate filter, or, in your case, I would remove the sand completely and refill your aquarium with washed gravel. Algae also need lots of nutrients, so if you overfeed your fish, algae will increase. Feed only what your fish eat in one minute, no more.
Updated on September 24th, 2025

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