Pure Water Pebbles Bio-Activ Live African Cichlid Aquarium Substrate is a great option for creating an African rift lake environment for your fish, plus getting the benefits of live bacteria to boost and kickstart the biological filter.
The unique look of this aquarium substrate was designed specifically to simulate the bed of an African rift lake, but can also be used for other aquascapes as well. The substrate range in size from 1.2 to 1.77 mm for the white and black granules and 6-8 mm for the larger “rift lake” granules.
This also uses the company’s Bio-Activ nutrient-enriched material, that contains live bacteria (heterrotophic, autotrophic and chemolithotrophic bacteria) that quickly stabilizes while aiding in eliminates nitrogenous waste. The substrate also helps maintain a proper pH level maintain proper (pH 7.8-8.5) and buffering capacity. The natural aquarium substrate also helps keep essential inorganic elements up to par, helping with overall quality.
A 20 pound bag retails around $25.