Best Aquarium Sand

Amazon’s Choice

Natural aquarium sand that is ideally sized to keep your aquarium fish-friendly.

Imitates natural sand in an aquarium. The size of the grain reduces built-up debris and waste. No paints or dyes are used; sand is pH neutral and safe for aquarium life. Can be used in both freshwater and saltwater tanks.

Arag-Alive Fiji Pink Sand

Sand must be stirred up weekly to avoid built-up gas bubbles.

Best Bang for the Buck

Carib Sea

Boosts Aquarium Environment

Reef sand that works best in saltwater tanks.

Made of aragonite substrate that fits all types of aquariums. Possesses marine bacteria that are beneficial to marine life, enhancing biological filtration. Minimizes nitrate and ammonia levels. Ships wet with saltwater, ready to be used to host beneficial bacteria.

Cannot be used in freshwater, as it will kill the bacteria.

Seachem

Flourite Black Sand

Best for Freshwater Plant Tanks

Specially made gravel that works in natural plant aquariums.

Does not require any rinsing upon arrival. Does not have chemical coating or treatment. Will not alter the pH balance of water. Is good for the life of the aquarium. Sand does not need to be replaced.

Freshwater Aquarium Aragonite Sand, 10 lbs

Can become dusty upon arrival. Cloudiness may occur.

Aquanatural

Great for Cichlids

This sustainably sourced sand comes from 98% naturally-renewable, pure calcium carbonate.

These round and odorless sand pebbles won't harm your fish or leave your room with a pungent musk. The sand was collected from the crystal clear Bahamian waters for a naturally clean option that's healthy for Cichlids, too.

Black Freshwater Aquarium Sand, 5 lbs

Make sure to rinse before you use it; it leaves things cloudy.

Stoney River

Beautiful in Black

This safe, non-toxic, and environmentally friendly black sand gets rave reviews.

Blacklit aquariums look great with this at the bottom. It keeps your fish safe and provides an adequate base for your plants, as well. Many buyers applaud the stylish sand for its low cost and performance in their tanks.