The Betta's Cave combines a decorative centerpiece with a functional shelter. It features feeding grooves that securely retain sinking pellets, allowing easy feeding without scattering waste. Its surfaces include smooth areas and crevices that provide safe, injury hiding spots for Betta fish and dwarf shrimp, supporting stress behavior. Designed for freshwaters, paludariums, or tanks up to 8 cm depth, it enables natural swimming and hide behaviors while enriching the environment. The structure is lightweight and uses suction cup backed hollows with 0.1 mm 3D printed accuracy. This allows adjustable placement in the tank and promotes a realistic rocklike texture for stimulation. Key attributes at a glance: compatible with Betta and dwarf shrimp setups; function as both decor and shelter; shallowtank friendly (up to 8 cm depth); material designed for precision fit and easy repositioning; natural rock textures to encourage exploration. Use scenarios: Betta tank setup: attach to the side of the tank near the front, use the feeding grooves to hold sinking pellets, and provide a safe retreat for the Betta. Paludarium or shallow freshwater display: mount on glass to create a sheltered area for small aquatic inhabitants like dwarf shrimp, while adding a naturalistic focal point. Small decorative display in tanks up to 8 cm depth: place as a center feature that supports hidden resting spots and encourages curious movement.