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Updated May 2023
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Why trust BestReviews?
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We buy all products with our own funds, and we never accept free products from manufacturers.Read more 
Bottom line
Pros
Cons
Best of the Best
Seachem Flourite Black Clay Gravel
Seachem
Flourite Black Clay Gravel
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Customer Favorite
Bottom Line

Versatile aquarium gravel that's good for freshwater plants as well as fish, and looks great too.

Pros

Porous clay gravel that promotes an aquarium environment that helps freshwater plants thrive. Not likely to change a tank's pH balance. Can easily be mixed with other gravel.

Cons

Some users gripe about residue or cloudy water, but this can be avoided with proper tank setup and filtration.

Best Bang for the Buck
GloFish Fluorescent Aquarium Gravel
GloFish
Fluorescent Aquarium Gravel
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Budget Friendly
Bottom Line

A fun pick that adds to the aesthetic of tanks with fish that glow at a decent price point.

Pros

Adds a nice, dark feel to regular aquariums or adds to ones with specific types of fish. Comes with enough for a 5-gallon tank. Completely non-toxic to the fish.

Cons

The bag it comes in can rip easily, leading to spilled gravel.

Spectrastone Premium Aquarium Gravel
Spectrastone
Premium Aquarium Gravel
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Simple Yet Solid
Bottom Line

Small, aesthetically appealing gravel that's basic and worth considering.

Pros

Classic gravel that's suited for freshwater tanks. Safe to use and doesn't typically alter water's pH balance. Gravel has a nice texture without sharp pieces. Also looks appealing in water.

Cons

Some bags were quite dusty and didn't contain the advertised 5 pounds. Gravel is on the small side.

Pure Water Pebbles African Cichlid Aquarium Substrate
Pure Water Pebbles
African Cichlid Aquarium Substrate
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Clean Tank
Bottom Line

A solid choice that simulates certain environments and helps reduce nitrates.

Pros

The pebbles are all completely natural. Big enough to help situate tank features. Reduces nitrates by promoting specific filtration growth. Helps maintain clear water.

Cons

Has a lot of calcium, which makes it not as suitable for freshwater tanks.

CaribSea Arag-Alive Natural Reef Aquarium Gravel
CaribSea
Arag-Alive Natural Reef Aquarium Gravel
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Best for Saltwater Tanks
Bottom Line

The best pick if you are setting up a saltwater tank and want to encourage coral growth.

Pros

Made for saltwater tanks, this gravel inhibits algae growth while promoting the growth of coral. Contains marine bacteria for a healthy aquatic environment.

Cons

Some tanks developed cloudy water after this gravel was added.

HOW WE TESTED

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

36
Models
Considered
105
Consumers
Consulted
30
Hours
Researched
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