Avenuebool Aquarium Cave Three Hole, 3D Rock Texture Fish Tank Tunnel & Hideout, Natural Under Gravel Aquarium Decor for Small Fish, Shrimp, Corydoras, Kuhli Loach, Hermit Crabs

Natural 3-Hole Aquarium Cave – Enhances Scaping & Viewing: Inspired by real cave formations, this fish tank cave features smooth natural curves and a realistic rock texture that blend seamlessly into aquascapes, planted tanks, cichlid tanks, and shrimp tanks. It adds depth, realism, and a unique viewing experience. 180° Viewing Angle for Better Observation: Designed to sit against the glass, this 3-hole aquarium cave allows you to observe your fish from the front, side, or top—just like watching them in a natural underground tunnel. Ideal for viewing resting, hiding, mating, foraging, and shrimp behaviors. Secure Shelter for Shy & Bottom Dwelling Species: The curved tunnel and multi hole design provide a safe refuge from bright light, strong flow, and territorial fish. It protects shrimp during molting, reduces stress, and encourages natural behaviors such as exploring and resting. Great for community tanks and bottom dwellers. Fish Safe Material – Won't Affect Water Parameters: The aquarium tunnel is made from PETG that releases no harmful substances and does not alter water chemistry. A perfect hideout for shrimp, betta, corydoras, kuhli loach, catfish, clown loach, and other sensitive species. Easy Installation – Use Above or Under Gravel: Simply push the substrate aside, place the fish cave against the tank wall, and move the gravel back around it. It sinks automatically and stays stable even without burying—ideal for bare tanks, thin substrate tanks, and shrimp setups