Review on Natural Stackable Rock Caves for Aquariums - Perfect Hideouts for Shrimp, Cichlids, and Fish Breeding by Megan Ramirez

These ceramic stones make great betta skins. I used silicone for the tanks to glue them the way I wanted them, they won't fold and don't hold up well enough to risk standing as they are to fall over and pet the to crush aquariums. They are fairly smooth but have some texture due to the concrete top. They have no sharp edges and a nice organic/natural shape. I absolutely recommend them to anyone who wants to enjoy Betta Tank Cover. You look great!