Shop / Estes / Estes Spectrastone Black Gravel Estes $14.99 Estes Spectrastone Black Gravel Quantity Weight 5-lb Ship to me Pickup in store Add To Cart Information Ingredients Spectrastone black gravel is an ideal substrate for fresh water and marine tanks. Our standard colors use silica quartz which is an inert stone that will not affect pH. N/A Customers also liked Customer Reviews
