Made in the USA. 5Lbs (Orange) Durable, long-lasting substrate for aquariums and terrariums. Non-toxic gravel is safe for your finned friends. Colorfast material is pH-neutral. Rinse before use. Create a spectacular environment for your finned friends with Spectrastone Aquarium Gravel. This durable and attractive gravel is safe and non-toxic for freshwater aquariums and terrariums. It’s also colorfast and pH-neutral. Plus, it’s made in the USA.