The biOrb Sea Stars on Rock Sculpture forms a natural-looking centrepieceand when contrasted by colourfulplants for a striking display. The design is hand crafted by aquatics decor designer Samuel Baker. The sea star accents would be a natural fit to a biOrb saltwater aquarium. Simply slide over the bubble tube in the biOrb. It is easy to fit and remove. This sculpture is suitable for 8 gallon / 30 litrebiOrb aquariums and larger and is 8.27 inches / 21 cm tall.