Aqueon Standard Aquarium – 55 Gallon, Black Frame, Clear SiliconeAqueon Standard Aquarium 55 Gallon, Black Frame, Clear Silicone 48. 3" x 12. 8" x 21" The Aqueon Standard Aquariums are made with care to assure that they can stand up to almost any application. These aquariums come in a wide range of sizes, as well as in black and oak trim styles. Larger aquariums feature a one piece center braced frame that eliminates glass bowing over time. This specific model is created with clear silicone. Please Note: All