Nature's Ocean Bio-Active Live Reef Sand - Samoa Pink - 20lb

100% real ocean sand is naturally and sustainably collected in the natural environment and the bacteria within are naturally preservered to provide the most natural environment possible for your saltwater aquarium. 10 million marine bacteria exist per pound to provide biological balance. Sand granules measure 0.1 to 0.5 mm. Aragonite base helps enhance buffer capacity of your tank as well.