JBJ 24 Gallon Nano-Cube Deluxe Aquarium 2X36W Compact Fluorescents & LED Moonlights Capacity: 24 Gallons Dimensions:18"x19.6"x19.7" Pump flow: 290 gph Tank: Offers Panoramic viewing with smooth rounded corners. Provides the ideal dimensions for a mini-reef tank that requires depth for proper rock stacking