NOQ1006: Features: -Aquarium sand. -Color: Pink. -Instant ammonia cycling. -Perfect for most applications (except undergravel filters). -Just place in tank, add saltwater (for best results use NutriSeawater ) then add fish, no waiting required. -Collected in its natural environment and packaged in its natural state. -Contains natural live marine bacterial biofilm. -Superior to cultured live sand products. -Packaged 2 / 20 lbs (9.07 kg) bags/case. -Made in United States. Recommended Use: -Use a minimum of 1lb Bio-Activ live argaonite live sand per gallon of saltwater. Set up an appropriate filtering system and allow it to circulate. During the first month introduce no more than 1 of fish per 5 gallon saltwater. Specifications: -Grain size: 0.5-1.7mm. -Dimensions: 20 H x 12 W x 2 D.