Natural Slate Stone 3 to 5 Inches - USA Sourced and Packaged for Aquascaping Aquariums, Terrariums, Paludariums, Reptiles, Wargaming, Model Railroads, Miniature Gardens, Mosaic Art (12lbs)Brand: Small World Slate & Stone Features: 100% natural stone that is safe for your aquarium and has been sourced, washed, and packaged by our family owned business in the USA. The color is a deep grey. Each package is a mix of stone from 3 to 5 inches (some stones may be slightly above or below this range) AQUARIUMS Ideal for aquascaping planted, fresh or salt water aquariums, paludariums, as well as biotope, Iwagumi, Dutch, nano and beta tanks. The