Nature's Pure Series Seamless Glass Cube Aquarium 6x6x6 in. - .5 Gallons Qty: 1 Seamless hand blown aquarium. 6x6x6 in. (LxWxH) Cube Holds about 0.5 gallons empty. Great desktop aquarium. No silicone glue on edges. Smooth rounded edges. Note: May contain air bubbles and minor scratches due to the hand blown process.