Sand & Gravels

Shop Clean, Natural Aquarium Sand and Gravel decor

Aquarium sand and gravel decor form the bottom layer of your tank setup; they provide anchorage for plants and serve as a home for beneficial bacteria that keep your water clean. These substrates not only provide your fish with natural areas to dig and forage, but also serve as the visual base of your aquascape. Depending on the species of fish you keep and your tank type, you can choose from fine sand, chunky gravel, or even specialty substrates.

Aquarium gravel substrate supports better rooting in planted tanks, and provides better water flow, while aquarium sand substrate is ideal for bottom-dwellers and creates glass-smooth tank bottoms, with a natural look and feel. Popular options are black aquarium sand for a dramatic high-contrast effect, white aquarium sand for a clean and bright aesthetic, and river sand for a more authentically natural look.

Your choice of aquarium sand and gravel decor depends on your fish species and maintenance routine. Aquarium sand, such as the AquaEL Quartz Sand, is ideal for sensitive fish and provides a smooth decorative bottom. Alternatively, aquarium gravel like the AquaEL Basalt Gravel and the AquaEL Dolomite Gravel offers great filtering capability combined with beautiful visual texture. If you are looking to enhance the aesthetics of your tank, the AquaEL Natural Multicoloured Gravel provides a vivid coloring to freshwater aquariums.

Rinse all substrates thoroughly before putting them into your tank, even pre-washed ones, contain dust that will fog your water. Avoid substrates with sharp edges that will damage fish during normal bottom-feeding behavior. Do not use substrate layers too deep in planted tanks since it creates anaerobic pockets that produce deadly gases. Most tanks do best with 1-2 inches of substrate depth, and also, never use playground sand or building material that may have toxic chemicals.

The right aquarium sand and gravel can enhance your fish’s health, plant growth, and tank aesthetics. You can check out our selection of aquarium sand and gravel to find the ideal substrate for your aquarium.

FAQs About Aquarium Sand & Gravel Decor

(1) Is sand or gravel better for an aquarium?

It depends on the fish and the type of tank. Aquarium sand is best suited for bottom dwellers like corydoras and provides a natural look, while aquarium gravel provides greater circulation and cleanliness. Planted tanks prefer sand for root development, but fish-only tanks function with either.

(2) Can I mix gravel and sand in my aquarium?

Yes, you can mix aquarium sand and gravel, but do so tactfully. Place the gravel substrate in the back for plants and aquarium sand in the front for feeding areas. Avoid fine sand settling into spaces between gravel, which is difficult to clean. Better still, use them separately in different areas instead of mixing them completely.

(3) What size of sand is best for my aquarium?

Fine to medium grain sand (0.5-2mm) is ideal for most aquariums. The AquaEL Quartz Sand has the ideal particle size for bottom feeders without being so fine that it allows water compaction. Avoid very fine sand that will impede water flow or very coarse sand that easily traps detritus.

(4) How deep should gravel be in my fish tank?

For fish tanks, 1-2 inches in depth is ideal, and 2-3 inches for planted aquariums. Substrates that are too deep create dead spots, while layers that are too shallow don’t offer enough surface area for beneficial bacteria.

(5) Do I need to wash gravel before putting it in an aquarium?

Absolutely! You have to rinse your gravel and sand well before use. Add substrate into a bucket and rinse with dechlorinated water until the water runs clear. This will remove dust and debris that would otherwise discolor your tank water.

(6) What is the best substrate for an aquarium?

The ideal aquarium sand or gravel will depend on your particular requirements. River sand is ideal for natural aquariums, black aquarium sand creates bold contrast, and our AquaEL Natural Multicoloured Gravel adds to visual appeal. Consider your fish species, cleaning routine, and appearance goals when making your choice.

(7) How do I switch from gravel to sand in my aquarium?

Move fish into a holding tank, and then siphon away the previous aquarium gravel substrate. Thoroughly clean the tank before introducing pre-rinsed aquarium sand substrate. Fill slowly so as not to unsettle the sand, then introduce fish slowly.