Dihl 4KG Yellow Fluorescent Coloured Aquarium Tank Pond Gravel, 3mm to 8mm, Decorative, Non-Toxic Natural Substrate. Fish, Aquatic Reptiles, Arthropods, Crustacean and Amphibians, 4 KG Yellow

This product is ideal for setting up a thriving aquatic environment in an indoor or outdoor terrarium with small to medium-sized fish, reptiles, amphibians, arthropods, and crustaceans that require a soft, non-toxic substrate like gravel.