Blue Ribbon Exotic Environments Tree House (Green Roof) – A delightful aquarium ornament of a tiny treehouse with a green shingled roof tucked in an old tree trunk. It’s intricately crafted with windows, doors, and twisting roots, providing small fish or invertebrates with hiding places to reduce stress. The whimsical design and bright green roof add a pop of color and storybook charm to any tank. Made from non-toxic polyresin and hand-painted, this tree house decoration is safe for fish and helps create a playful, enriching habitat by encouraging natural hiding and exploration behaviors.