Bio-Active Live Aragonite Australian Gold Reef Sand - 20 lb.
Nature's Ocean Bio-Active marine gravels are made from natural aragonite with out added chemicals or dyes to disrupt your water quality. Packed in nitrifying bacteria-filled water, they drastically reduce your cycling time. Naturally buffers to a pH of 7.8 - 8.2. Great for your saltwater, reef or brackish tank. Not suited for freshwater tanks.