Natural, Black Lava Rock Stunning colours, and look really natural in the aquarium. These rocks are ideal for planting any plants either in small baskets or direct in the holes in the rock. Is suitable for all marine and fresh water aquariums. Ideal for all types of aquarium, terrariums, vivariums. Perfect for attaching the plants to it because of its unique porous structure.
The stones are very lightweight. As with all Natural Rocks please insure that you wash them before use.