Natures Ocean - Live Aroganite Reef Sand 
 
Ready to use, Natural White Bio-Activ Reef Sand is a premium LIVE Aragonite sand designed for marine aquariums. It contains natural live marine bacteria, facilitating instant cycling upon setup. With a 100% natural composition, this sand contributes to a clearer and healthier aquarium right from the beginning. The grain size ranges from 0.5 to 1.7mm