20 Gallon Long Aquarium: Diamond Polished Edges, Distortion Free Glass, Black Frame Top & Bottom, Dimensions/Size: 30"x12"x12"; Weight: 26.4 lbs. Model AM11031. Aquarium Masters Standard Framed Aquariums are assembled with the highest quality material available. Every aquarium is rigorously inspected to exceed industry standards and expectations. Included in every Standard Frame Aquarium: distortion-free glass, diamond polished edges for safety, black framed top and bottom, commercial grade silicone sealant for aesthetic appeal that also prevents capillary action and leakage (available in clear color). A variety of lighting systems and filters are available for all sizes. We are proud to provide the best quality Aquariums in the USA, Aquarium Masters Aquariums. We have the largest selection in shapes, sizes, combinations, and styles.