Recreate your finned friends’ natural habitat with Pure Water Pebbles African Cichlid Aquarium Substrate. Designed to simulate the bed of an African rift lake， the large pellet size of this premium-quality， all-natural material provides ample living space for beneficial microbes and anchoring for plants. It also aids the filtering process by increasing the surface area available for nitrifying bacteria to colonize. Finally， it helps reduce harmful nitrate， maintain proper pH and enhance buffering capacity， while also providing essential inorganic elements needed to achieve and maintain pristine water quality.