UNS Controsoil Black Aquarium Substrate

Ultum Nature Systems Controsoil is premium volcanic Japanese planted aquarium soil designed to buffer pH below 7 and moderate kH without releasing massive, dangerous ammonia spikes. Perfect for sensitive freshwater dwarf shrimp (Caridina and Neocaridina), delicate carpeting plants, and high-tech scapes. Normal granule size (~3-5mm) promotes optimal root aeration and water penetration. Volume: 10 Liters (~19 lbs).