Quantum Retail is Authorized Seller of this product. Avoid other seller for better experience. Quantum Retail is the registered brand and other seller is restricted to sell product of Quantum Retail Brand. Buy Original Products From Quantum Retail. Quantum Retail Quartz sand is suitable for decorating table centerpieces with candles; favors with a beach theme such as message in a bottle or anything else that needs a little flourish of sand. A Violet aquarium substrate can add a great contrast in colors from other rock or decoration in your tank; Violet will really stand out against bogwood and slate rocks Gravels are one of the most important parts of the aquarium as they keep water fresh and healthy long time by absorbing all the waste Suitable For Freshwater Tropical; Cold Water & Marine Aquarium Tanks. This aquarium decorative sand will provide a Very Healthy Environment For Plant & Fishes. Empty the sand in a bucket and wash till all the dirt is out. Then put in aquarium.Product color may slightly vary due to photographic lighting sources or your monitor settings. Quartz sand only.