General description Environmentally friendly resin does not affect water quality, is non-toxic and odorless. This beautiful wine barrel design enhances the visual appeal of your aquarium while providing shelter for your fish, satisfying their instinctive need for privacy and cover. With portals and openings, fish can shelter, play, and swim freely. This decoration is great for aquarium setups, model making, terrariums, marine aquariums, mini gardens, and fairy gardens.