SubstrateSource Natural Stone for Aquarium, Terrarium, Paludarium, Reptile Enclosures - Set of Decorative Rocks for Landcapes, Aquascaping, Fish Tank Decor (Black Lava Rock, 18 Pounds)

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SubstrateSource Natural Stone for Features

• Black Lava Rock is a lightweight, porous aquascaping stone favored in both planted and African Cichlid tanks. The porosity of this stone makes it excellent for aquarium filtration, as the tiny pores offer ample surface area for beneficial bacteria colonization. This stone will instantly transform your project into a realistic and natural scenery.

• Versatile Use - Great for creating miniature rock formations in your aquarium, terrarium, vivarium, reptile or amphibian enclosure, adding to outdoor fire pits, or anything else where natural rock is desired.

• Size - 18 pounds contains 2-7” size stones, and is recommended for tanks 10-25 gallons depending on your desired look. Lava rock is lightweight and requires less weight to fill an aquarium compared to other stones. Increase weight ordered for larger tanks or for a fuller appearance.

• Natural Stone - You will receive stones similar to the image shown, however each piece will differ slightly due to natural rock varying in shape and size. Can be glued together to create cliffs, benches, walkways, or used as miniature boulders.

• Safe for Aquariums - Inert and won't change water parameters, but stones require a thorough rinsing prior to use.

About SubstrateSource Natural Stone For

Black Lava Rock is a porous aquascaping stone that is widely used for planted as well as African Cichlid tanks. This lightweight stone can range from a dark black to reddish-brown coloration. The porosity makes it suitable for use as aquarium filtration as the tiny holes provide surface area for beneficial bacteria to colonize.