Small World Slate & Stone is proud to offer these beautiful natural slate stones. They are safe for use in your scenery and will not deteriorate in the weather or pet enclosures like resin does. Perfect scale for Aquascaping, these stones are easy to incorporate into your tank. They can also be grouted together in a path or walls. They can be stacked and glued to form fish caves/caverns or benches/seats and broken to create different sizes. We have sorted and washed these stones and offer them in several size ranges from pathway stones to small scale gravel.