WIO BLACK VENOM NANO ROCKS S2, 2 kg

Create the perfect underwater world with a unique cosmic energy with the smaller version of the Black Venom Boulders by WIO. The rocks in beautiful deep black have a smooth surface and a maze-like texture which makes them particularly suitable for Iwagumi layouts. They can be used to conjure incredibly contrasting landscapes when used together with green plants and moss.

Note: The rocks can increase the water hardness slightly which can be easily kept under control by regularly changing the water.