Welcome to Congressional Aquarium
Monday – Sunday: 12AM – 6PM
Congressional Aquarium, Inc. carries a huge selection of rare freshwater and saltwater fish, aquatic plants, and aquarium supplies in Rockville, MD. Whether you’re new to the hobby, or an advanced aquarist looking to setup a beautiful reef ecosystem, we are the shop for you.
We’re Hobbyists, Too!
Members of our staff have been working in this industry for many years, some as long as 45 years! We are not just employees, we’re enthusiasts and share our customers’ love for the aquarium hobby.
Aquariums & Tanks
We stock a number of different tanks, ranging from 1 to 125 gallons. Hard-to-find shapes and larger sizes are easily special-ordered and typically arrive within a week. To search for specific products please visit our wholesalers websites at Central Pet Distribution and Royal Pet Supplies.
Any equipment bought with the tank are 20% off, including decorations, filters, hoods, and lights! We are always ready to arrange for delivery, setup or maintenance of any size tank.