Description
SubstrateSource Natural Lava Gravel is a highly porous substrate for use in freshwater aquariums. The lava has been screened to remove large granules and can be used as a complete aquarium substrate system. Color & Size: SubstrateSource Natural Lava Gravel is available in two, naturally occurring colors, Volcano Red and Volcano Black. Since this is a naturally produced product, you can expect there to be some variation in the color of the substrate granules. The substrate is screened for a more
