UNS at Underwater TropicsTank guideStand guideUNS gear Ultum Nature Systems · Tallahassee, FL UNS Controsoil, Normal Black, 10 L 8 in stock Call the Tallahassee shop Black aquasoil with a regular grain for general planting.Size and materialPack size 10 LUse the 10 L bag for a large footprint or a deeper bed.Related gear Controsoil, Normal Black, 3 L · Controsoil, Normal Brown, 10 L · Compare Controsoil colors & sizesSee Controsoil in a planted tank