Which stone is best for a fish tank?

The best stone for a fish tank is commercially prepared aquarium stone that has been cleaned and tested for mineral content and contaminants. For a freshwater tank, choose a non-calciferous, inert stone that won't change the pH and mineral composition of your water—good choices include quartz, granite, and slate. For a saltwater tank or fish that need hard water, you may want to choose coral or limestone gravel that adjusts the chemistry of your water.

Is it necessary to put stones in aquariums?

It isn't necessary to put stones in aquariums—you could choose another substrate like sand instead. Both allow beneficial bacteria to flourish, which provides important biological filtration for your water. However, many people prefer the look of stone and enjoy the convenience of using a gravel vacuum to clean.

Should I boil rocks before putting them in an aquarium?

You should not boil rocks before putting them in an aquarium, as there is a risk of the rocks exploding. Some rocks contain air pockets that can cause bursting under high heat. If you choose a commercially prepared stone made specifically for use in fish tanks, you should not need to worry about boiling to sterilize them.

Aquarium & Fish Tank Gravel - Page 2 (Free Shipping)

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Frisco Natural Aquarium Gravel, 5-lb

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Spectrastone Swift Creek Premium Aquarium Gravel, 5-lb bag slide 2 of 2

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Spectrastone Swift Creek Premium Aquarium Gravel, 5-lb bag

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Aquarium & Fish Tank Gravel

Frisco Natural Aquarium Gravel, 5-lb

Spectrastone Swift Creek Premium Aquarium Gravel, 5-lb bag

CaribSea Aragonite Florida Aquarium Crushed Coral, 10-lb bag

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

Aqua Natural Iwagumi Nile Aquarium Gravel, 7.7-lb bag

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

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

Stoney River Caribbean Beach Premium Aquarium Sand, 5-lb bag

Aqua Natural Betta World Diamond Black Aquarium Gravel, 1-lb bag

CaribSea Super Naturals Sunset Gold Aquarium Substrate, 40-lb bag

Exotic Pebbles Jade Bean Pebbles, 20-lb bag

Aqua Natural Smooth Lava Grey Aquarium Rock, 14-lb bag

Spectrastone Permaglo Rainbow Premium Aquarium Gravel, 5-lb bag

Dennerle Nano Garnelenkies Shrimp Aquarium Gravel, 4.4-lb bag, Sulawesi Black

Aqua Natural Iwagumi Gunsmoke Grey Aquarium Gravel, 7.7-lb bag

GloFish Aquarium Fish Gravel, Black, 5-lb

Aqua Natural Betta World Tutti Frutti Aquarium Gravel, 1-lb bag

Stoney River Java Beach Premium Aquarium Sand, 5-lb bag

Spectrastone Ocean Beach Premium Aquarium Gravel, 5-lb bag

CaribSea Super Naturals Torpedo Beach Aquarium Substrate, 5-lb bag

Exotic Pebbles Wood Bean Pebbles, 20-lb bag

Aqua Natural Aquarium Alpine Rock, 15-lb bag

CaribSea Super Naturals Moonlight Sand Aquarium Substrate, 5-gal tank

Dennerle Scraper's Soil Active Aquarium Substrate, 4-L bag

Aqua Natural Betta World Violet Sparkle Aquarium Gravel, 1-lb bag

Aqua Natural Iwagumi Garnet Purple Aquarium Gravel, 7.7-lb bag

GloFish Aquarium Fish Gravel, Black & White, 5-lb

Aqua Natural Betta World Grey Mini Lava Aquarium Gravel, 1-lb bag

Frisco Speckled Aquarium Gravel, 5-lb

Spectrastone Nutmeg Premium Aquarium Gravel, 5-lb bag

OASE Indoor Aquatics ScaperLine 3 Fish Soil, Brown

AquaZen Scaper's Strata Volcanic Freshwater Aquarium Substrate, 8.8-lb bag

Aqua Natural Betta Aquarium Jewels, Emerald, 17-oz bag

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

Aqua Natural Iwagumi Silver Aquarium Gravel, 7.7-lb bag

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