Congressional Aquarium - Aquarium shop in Rockville - 138 Congressional Ln, USA

This place is so old! But that's OK! They have the knowledge and experience to answer your questions and find what you're looking for. The tanks could use a little more TLC. The staff, at least the 2 I spoke with, knew what they were talking about. There's even a guy that has a cool whistle lol!

Great place for all things aquatic. Best selection of fish, especially larger fish, in the area. Super helpful staff, tons of spare parts for pumps and filters. Definitely worth the Pike traffic 😉

Very good store with good employees and most importantly a wide variety of fish which always seemed to be in good health (although i haven't really looked at the saltwater section which is where most of the poor reviews talk about). My one problem is the prices are very high, prices of fish and other items are quite a bit higher than other places ive seen. I understand local shops need to charge a bit more but I feel they overdo it. Still overall a nice place

I was looking for another feeding goldfish so they can be playmate to the one I have almost a month now. I had bad experience with both Petco and Pet Smart so I went to Congressional Aquarium. I was impressed with varieties of fishes and accessories etc. I can easily spend hours looking at the fishes, shrimps, snails in this place. No one bothered you and when I knew what I wanted, I just went to an employee at the desk. Ethan was friendly, kind and very helpful. He picked 2 beautiful feeding fishes for me. They cost only a dollar but the customer service he has giving me, it goes a long way. What's a great place to visit. Thanks for a great service from Ethan, I will be back for more fishes, shrimps etc. in the near future.

Super pricey with very average saltwater selection. I would definitely quarantine any fish from here! Going to pay above market price for almost anything here that can be found at other stores for much cheaper and of the same if not better quality elsewhere.

This place is so cool. It's like a small aquarium with all kinds of fish, small ones of course. My kids love to visit it. You can also get lizards, turtles, frogs, even snakes if you like. They also have large selections of tanks, other supplies and decorations. I would give it a five stars but their fish price is a little high. It's understandable because of the location and higher than normal maintenance cost. I think it's deserve a 4.5 stars overall. If you are a fish lover, you won't be disappointed.

I believe you truly come to this store not only for a selection of items petsmart and chain stores cannot provide, but for the wonderful knowledgable staff. Their advice has saved my beloved betta fish after I came in distraught about his swim bladder. They had the products I needed, which chain stores did not, but also took the time to walk me through products and formulate a plan for his recovery. Their expertise shows and they are all so kind. My only point for improvement is the amount of sick bettas I have seen at this store. I wish they would move away from the cup system and implement micro tanks or similar, and do better in that way than petsmart does. I know the staff cares for each fish and tries to help them, but there is only so much you can do from a cup with no heat/filter/etc. I would like to see the store owner implement a better betta housing system but otherwise this store is perfect. By far the best place to go in the area if you own a fish!

I am getting back into Tropical fish. I worked at Congressional Aquarium back in 70's when in HS. Back then Congressional Aquarium was on the other side of the steps. Earl Reed was the owner. no internet. he use to tell me about where different tropical fish came country wise. I learned a lot about how the precure , transport and catch the fish