About
Tucked down a flight of stairs behind a door painted with fish, Tropical Lagoon Aquarium has been a Silver Spring, MD institution for more than thirty years — the kind of basement aquarium store you have to know about to find, and one that keeps loyal hobbyists coming back week after week. The space is small and densely packed, but the tanks are shockingly clean and the fish are visibly healthy, active, and clearly well cared for. Owner Steve is the heart of the shop, and regulars describe him as an encyclopedia who would rather steer you toward the right fish than make a quick sale.
"If he doesn't think a fish is right for your tank, your experience level, or your setup, he'll tell you," one customer wrote this summer. Mark and the rest of the team earn the same praise — knowledgeable, patient, and happy to walk newcomers through water changes and everyday tank care. The selection spans both freshwater and saltwater, with a coral wall solid enough that reef keepers make the dedicated trip.
You'll find freshwater favorites like angelfish for sale in Silver Spring, MD, alongside driftwood, live plants, fish food, shrimp and other invertebrates, goldfish, and saltwater species that rarely turn up at other local stores — one regular calls it the best spot around for arowana. Prices are consistently described as fair and budget-friendly, often beating bigger shops across the DC Metro area. Part of the charm is the personality: Tank, the resident turtle, is a favorite with kids, and the casual neighborhood feel makes browsing as fun as buying.
Parking is in the adjacent lot, free on weekends and metered on weekdays. The phone line stays perpetually busy, so this is a store to visit in person — for anyone in Silver Spring or greater Maryland hunting for a deeply stocked, honestly run aquarium store, the trip downstairs is well worth it.
What they offer
Fish & livestock for sale at Tropical Lagoon Aquarium in Silver Spring, MD
Tropical Lagoon Aquarium stocks corals, reef fish, goldfish, angelfish, arowanas, rare and hard-to-find species, invertebrates, shrimp, aquarium plants and freshwater & saltwater fish for sale in Silver Spring, MD. As an aquarium store serving Silver Spring, MD, it also carries fish food and offers aquarium consultations.
- Livestock & products
- Services
- Specializes in
Highlights
What makes them special
- Owner Steve has run the shop for 30+ years; he and Mark are praised for honest, no-pressure advice
- Basement space behind a fish-painted door — small and packed, but the tanks are shockingly clean
- Freshwater and saltwater fish plus a budget-friendly coral wall that draws reef keepers
- Stocks angelfish, goldfish, arowana, shrimp and invertebrates, live plants, driftwood, and fish food
- Fair, budget-friendly pricing repeatedly called the best in the DC Metro and Maryland area
From keepers
Customer reviews
“I’ve been keeping both freshwater and saltwater aquariums for years, and Tropical Lagoon is easily one of the best fish stores I’ve EVER visited. I find myself there almost every week because the quality, honesty, and customer service are second to none. Steve, the owner, has built something special. What sets him apart is that he’s incredibly honest. If he doesn’t think a fish is right for your tank, your experience level, or your setup, he’ll tell you. He’s not focused on making a quick sale—he genuinely wants his customers and their fish to succeed. That kind of integrity is rare and one of the main reasons I trust him completely. Mark is fantastic as well. He’s knowledgeable, friendly, patient, and always willing to help answer questions. The entire team is welcoming and treats customers with respect whether you’re a beginner or have been in the hobby for years. The fish are healthy, active, and clearly well cared for. That’s true for both freshwater and saltwater. I’ve purchased many fish from Tropical Lagoon over the years, and the quality has always been outstanding. Their selection is excellent, their prices are fair, and the advice they give is based on what’s best for the customer—not what’s going to make them the most money. In a hobby where trust matters, Tropical Lagoon has earned mine many times over. Great people, healthy fish, honest guidance, and exceptional service. If you’re looking for a fish store you can truly rely on, this is the place. Highly recommend. Five stars all day long. ★★★★★ Thanks Atif- Fish Addict 😂”
— Atif Khan5.06 days ago“This is such a cool place! The owners are super friendly and will answer your questions and show you around the store. A must for aquarium lovers”
— Montgomery B5.02 weeks ago“Very good selections for very good pricing! It is not the largest store but you may find what you need”
— Jennifer Justice5.02 weeks ago“Great store for all your fish needs, Staff very knowledgeable, and helpful. Also a really nice variety of coral, salt water and fresh water.”
— Sean Court5.0a month ago“Great selection and prices. Best aquarium store I've been to in maryland.”
— Lisa G5.0a month ago“This place was great. I didn't want to get fish from a big box store. The staff is very knowledgeable and helpful. I bought fish, plants and fish food.”
— Irma M5.02 months ago“Had such a great experience at our local aquarium store! We picked up a beautiful piece of driftwood and two angelfish, and everything was in great condition. The staff was super friendly and helpful, which made the visit even better. And a special shoutout to Tank the turtle—my daughter absolutely loved him! 🐢 Definitely a spot we’ll be coming back to.”
— Rebeca Escobar5.02 months ago“My favorite neighborhood reef store. Very friendly and knowledgeable more importantly budget friendly”
— Rodney Hall5.03 months ago“Best arowana fish.”
— ICE DJT5.0Edited 3 months ago“Selling sick fish”
— Maki Mama1.03 months ago
Reference
Frequently asked questions
Note — Store information and services may change. Always call (301) 585-6562 to confirm current availability, hours, and services before visiting Tropical Lagoon Aquarium.