Create a natural-looking riverbed in your aquarium or terrarium with Elderly Gravel. This soft and smooth-textured river gravel ranges from warm grey to brownish and dark tones. The gravel is available in three different size mixes and can be mixed to create depth or used as a base layer. Elderly Gravel is a perfect match for Elderly Stone and Boulders, creating stunning contrasts with Heaven Sand. The gravel does not raise water hardness and comes pre-washed for your convenience.