- Crafted from non-toxic resin material, this decorative cave house is a safe addition to your aquarium décor, ensuring a healthy environment for your aquatic pets. Its size is slightly larger than a standard coke can, providing ample space for fish to explore. - With a stable flat bottom, this decoration stands securely in your tank, making it a reliable hiding spot for your betta, snails, and other small aquatic creatures. It is compatible with both freshwater and saltwater tanks, adding versatility to your aquarium setup. - The thoughtfully designed openings are perfectly sized for bettas, allowing easy entry and exit. Each edge and interior surface is smooth, preventing any potential harm to your fish while they navigate through their new cave. - Suitable for tanks ranging from 5 to 20 gallons, this large cave decoration serves as an exciting feature that encourages natural behaviors in fish. Your aquatic pets will enjoy exploring, hiding, and playing around this charming cave. - Ideal for various scenarios, this decoration can be used as a cozy retreat for your fish to reduce stress, an eye-catching focal point in your aquarium display, or a playful hiding spot to stimulate engagement and activity. Enhance your aquarium experience with this decorative cave house, designed to promote the well-being of your aquatic life while enriching the aesthetics of your tank.