Blue Ribbon Exotic Environments Texas Holey Rock is an impressively large artificial rock ornament modeled after natural Texas holey rock limestone. Skillfully molded and hand-colored, it looks like real stone complete with numerous holes and tunnels that fish love to explore and swim through. Unlike actual limestone, this replica requires no curing – simply rinse and place it in your aquarium to instantly create a stunning, cave-filled aquascape. It’s fish-safe (no pH impact) and suitable for any aquarium or terrarium, offering shelter, territory, and a dramatic centerpiece in your aquatic habitat.