Tetra® Glass Aquarium 55 gal makes a beautiful home for your fish. This 55-gallon rectangular glass tank is perfect for pairing with Tetra filtration, lighting and water care products (sold separately). Customize your tank with assorted Tetra décor and accessories. Approximate dimensions 48 inches x 13 inches x 20 inches. Small aquariums are a great way to get started in the freshwater fishkeeping hobby, and with any new hobby involving living creatures, it is always best to learn as much as you can. When buying fish, ask your retailer for guidance in choosing the right fish for your size aquarium. Since 1951, Tetra has developed the world's most comprehensive body of fish food knowledge, and fishkeeping enthusiasts have looked to the brand for products and solutions that add ease and beauty to their home.