Corcovado Wood is an exotic natural wood used in aquariums and terrariums for its sculptural appearance and durability. It typically comes from tropical regions and features knotty, twisted shapes, ideal for creating a natural setting in aquariums, paludariums, and terrariums. It can release tannins, which darken the water and have a beneficial effect on some species. Pre-soaking is recommended to limit this effect and prevent it from floating.