Spice up your Aquarium with Marina Betta Kit Gravel, This gravel comes in an assortment of colors, all which are perfect to brighten your betta kit, Mix them together or use a single color, either way this gravel is a perfect decoration for your tank, Marina Betta Kit Gravel Features and Benefits:, - Safe and non-toxic, - Low Maintenance, - Durable, SKU: RCHG0173