You can buy Aragonite sand almost anywhere. You may ask yourself, "Why do I want this aragonite sand? What am I trying to accomplish? and/or How much is the right sand worth to my fish, corals and plants?" Our LIVE Keys Sand will strengthen corals and help them develop stronger and faster. Keys Sand is white and aragonite; perfect to beautify and aid your reef tank. Keeps pH at proper levels. We have collected the sand, returned to our nursery and have kept it oxygenated all the way. Therefore, it is full of beneficial bacteria, tiny worms, trace minerals as well as calcium carbonate.