Decorative Stones – 2 Pounds Aquarium Gravel, Fish Tank Pebbles, Natural Pebbles And Polished Glass Sand For Home Decoration (Blue Glass Sand)

Weight: 2 pounds about 1000 gram. Stone size: 0.04-0.12 inches/1-3 mm. Material: glass sand. Volume: 0.22 gallons Colorfast non-Toxic will not alter the chemistry of your aquarium water Use indoor & outdoor. Shiny in water. Perfect decor for fresh & saltwater aquariums ponds terrariums gardens potted plants vases ash trays crafts & hobbies… For a fish tank with length of L & width of W 1 thickness of stone layer needs L W / 23 pounds of stones. E.g. for a 1010 tank 1 stone layer needs 4.35 pounds of stones Please rinse with water 3-4 times before putting in a fish tank