Red Sea MAX S-Series 500 Plug & Play Coral Reef System 135 Gallon Aquarium w/ Stand - Black Specification: 5 System water volume: Combined aquarium and sump 500 L (135 ga Aquarium volume: Display tank with rear circulation pump chamber 440 L (119 gal Filtration sump volume: Glass sump with preparation for auxiliary reactors or refugium 60 L (16 ga Aquarium glass thickness Ultra clear front and side panels: 12 mm (1/2