








Underwater Wonders in Fort Collins, Colorado has built a reputation that draws reefers from across the Front Range and beyond — some customers drive from Parker, others cross state lines just to browse their coral displays. Owned by Seth and Garrett, this saltwater-focused shop started as a tank maintenance and installation service before expanding into retail, currently open two days a week for walk-in sales. That service-first DNA still shows: they monitor tanks for traveling customers, troubleshoot Apex Pro failures remotely, and spend unhurried time geeking out over reef chemistry and coral husbandry with anyone who walks through the door.
The coral selection is the main draw, and reviewers consistently call it the best in Colorado. SPS lovers in particular will find multi-branched, fully encrusted frags with vivid coloration — not fresh cuts, but established pieces grown and propagated in-house. Their aquaculture approach means healthier livestock and a sustainability focus that translates to better survivability in your home reef.
Multiple reviewers report dipping their new corals and finding them completely pest-free, a testament to the quarantine protocols highlighted in Underwater Wonders' own description. Pricing is competitive, with customers noting they receive what other vendors would label XL frags at standard prices. The shop also ships coral nationwide, with reviewers comparing their quality to top-tier online vendors like WWC and TSA.
Packaging is thorough — generous water volume, secure wrapping — and communication throughout the ordering process is praised as excellent. Beyond livestock, Underwater Wonders carries saltwater equipment and supplies, and their service side handles tank installation, relocation, and ongoing maintenance. Seth and Garrett also sponsor a local high school biotechnology class studying zooxanthellae, donating coral, equipment, and weekly mentorship to students exploring marine science.
The tanks inside are immaculate, the fish stock is healthy, and the atmosphere is welcoming without being pushy. For anyone maintaining a reef tank in Northern Colorado, this shop has earned its devoted following through quality, expertise, and genuine care for the hobby.
Patrick Blackwell
5 reviews
Wonderful tanks and wonderful staff
Lucas Ham
2 reviews
Underwater wonder Does a great job Their store is The best in Fort Collins, very healthy coral they have a great selection. They love their sticks, but they have a selection for everybody and they’re getting better at it and one of the owners Seth and his wife in his business partner. They’re all very good people.
Nick Porter
7 reviews
Before placing my order, I had an in-depth conversation with Seth regarding coral husbandry and the element program used in-store. His expertise gave me the confidence to move forward with Underwater Wonders. I recently received my first order and am incredibly impressed. The frags are multi-branched, well-encrusted, and vibrantly colored. Furthermore, after dipping the corals, I found them to be clean and entirely pest-free. Underwater Wonders has set a new standard for quality. I will certainly be ordering again and highly recommend them to anyone; once you experience their quality, you won't want to shop anywhere else.
Jason Hendricks
2 reviews
I just received my first order from UW and couldn't have been more impressed. Communication was great. Packaging was extremely well protected - including shipping the corals in more water than most shippers nowadays. Every frag I received would be at least considered an XL frag (multi-branch) from any other vendor (and priced to match), and one was a full blown mini-colony. Their prices are very competitive - and you get twice the coral for the money. The frags were all fully encrusted (not fresh cut) and very healthy - which significantly increases survivability. I always dip new coral, and these were spotless. UW should be viewed in the same tier as WWC and TSA.
Nick Aguon
24 reviews
Super friendly and very knowledgeable staff. Huge selection of healthy corals. One of the best reef stores on the front range (my favorite). We drive all the way up from Parker, CO. Definitely worth the drive!!!
Jon Gil
49 reviews
Best LFS in Colorado without a doubt. Great stuff, amazing selection. Great prices.
Rob Mougey
3 reviews
Fantastic local shop with amazing corals. If you are lucky enough to live in Northern Colorado this LFS is in your back yard. Further afield? It’s well worth the drive. This is a must see destination.
Bennett Colvin
Underwater Wonders is truly an exceptional coral shop, not only for the quality of their coral but for the incredible people behind it. Seth and Garrett, the owners, are masters of reefkeeping and have been perfecting their craft for years. Their passion shows in every healthy, vibrant coral they grow and propagate themselves. What really sets them apart is their generosity and commitment to the community. They have sponsored our high school Biotechnology Class, where our students are studying the zooxanthellae in corals. They have donated an incredible amount of coral, equipment, and, most importantly, their time. Every week, they mentor our students and share their deep knowledge of aquarium science, inspiring the next generation of marine biologists and aquarists. Beyond their unmatched professionalism, Seth and Garrett bring artistry, dedication, and genuine care to everything they do. This is hands down one of the best coral shops in the United States, and we are lucky to have them in our corner.
Joel Stainbrook
53 reviews
Not gonna lie.... I can be a bit biased when it comes to reef stores. But Seth and his crew have a great shop! Excellent displays, great selection, knowledgeable staff, friendly staff, and by what I understand a maintenence side of the business that is top notch! Side note of that, Seth was a major help at our local convention when our booth popped a breaker. Even after his both regained power and all was good with his set up, he diligently pursued help and answers for us. Thank you Seth!
Jim Noss
123 reviews
I have used these folks for the last couple of years to monitor my tank while out of the country. Today, I had a significant failure to my Apex Pro which shut down some critical components. I contacted several salt water stores in the area and found no one had what I needed. Then it came to me... I called this store and they had what I needed in stock. Not only did they have the equipment but, when I got home and ran into issues they were able to help me remote eliminating all stress. Nice job guys, you get it!
Note: Store information and services may change. Always call (970) 592-9009 to confirm current availability, hours, and services before visiting Underwater Wonders.
Phone
(970) 592-9009Website
www.underwater-wonders.com/Address
1007 N College Ave, Fort Collins, CO 80524
Take control of your listing to update info and respond to reviews.
Claim This ListingFind on Map
1007 N College Ave, Fort Collins, CO 80524
February 7, 2026
Verified Data
Information verified through Google Places API and community contributions.
Other aquarium shops nearby worth checking out