The Underwater Treasures Woodland Troll is an imposing and unique character to add to the decor of your freshwater or saltwater aquarium set up. The eerie and powerful troll is born of the trees and his design highlights the close bond between the creature and the forest. The gnarled wood design and large surface area offers plenty of hiding spaces and options to explore. Featuring a handful of vines and toadstools, this frightening and ominous guardian will carefully watch over and protect the inhabitants of your tank. Features aeration capabilities to create a more dynamic, visually pleasing ornament; simply plug the tubing into an air pump and watch the bubbles rise to the surface! 11" x 10.6" x 10.6"