OutSanding Selections™ Live Aragonite Special Coarse Reef is a 2-3mm size aragonite sand sustainably harvested from pristine sites in the Western Pacific and Caribbean. Packaged live with BioPronto naturally occurring beneficial microorganisms that help to purify water in marine aquariums. Packaged in 6.8 kg (15 lb) and 3 kg (6.6 lb) bags
