H2Show Atlantis Poseidon Decoration is part of the Atlantis World theme for aquariums. It is designed to be placed in the back left corner of the aquarium. Also available in the Atlantis World theme are Right Temple Decoration, Jellyfish and Fish Combo Pack, Shell centerpiece Decoration, and Atlantis Background. H2Show Bubble Maker and LED lights can be used with the centerpiece decoration or individually for spectacular visual effects. LEDs are available in the following colors; Blue, Red, Green, White and Multicolor.