Created by the rapid cooling of magma, Black Lava Rock is an extremely porous natural stone that is dark black in color and remarkably lightweight. Its surface area serves as a massive biological filter, providing ample space for beneficial nitrifying bacteria to colonize and improve the overall health of the aquarium. These mounds are also suitable for non-aquarium use and will work beautifully as a structured accent in terrariums, paludariums, or similar planted enclosures.
**These Black Lava Rock Mound pieces will have multiple pre-cut areas designed to enhance both the aesthetic and biological function of your tank. These holes provide extra character to your hardscape, offering safe resting spots for small fauna and the perfect “pockets” for attaching epiphytic plants like Anubias, Bucephalandra, or mosses.
Notes:
- Each stone is unique and ranges from about 5-6 inches
- If you are looking for stones with a particular shape and size, please email our support team for assistance.
- This is a natural product and has the potential to alter water parameters slightly.
- We recommend rinsing stones thoroughly before use to remove any natural dust or sediment.
- Stone coloration darkens when wet.
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