Aquarium cave features a unique stepped tunnel design that easily embeds into substrate, multi-layered hiding and exploring spaces for shrimp and small fish. The natural-looking underground aquarium cave seamlessly blends into your fish tank environment, enhancing the landscape's depth and visual appeal. Made from sturdy, ABS plastic, this fish tank hideout remains and colorfast after long-term water immersion, ensuring safety for all aquatic inhabitants. This betta tunnel's ladder-style openings allow easy access between substrate levels, letting your aquatic pets move freely while providing discrete hiding spots. Simple to set up: Place the fish tank cave on your tank bottom, cover with gravel (leaving openings exposed), and rinse with clean water before first use for optimal results.