Come see Dr. Koi at the Rocky Mountain Koi Show on August 28-31!

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Call 
(234) Koi-Doc1

When They're More Than "just a fish"

Expert Aquatic Care by Dr. Koi

Colorado's Premier Aquatic Vet

Welcome to Aspen Park Vet Hospital!
I'm Dr. Jena Questen. Most people call me Dr. Koi or Dr. Q.


As a certified aquatic veterinarian and head of the first fish hospital in Colorado, my mission is to provide expert and compassionate care for your finned companions. We offer a full range of services for koi and other aquatic animals, combining both traditional and innovative holistic treatments to help your fish live longer, healthier lives.

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​Enter your EMAIL for FREE advice on fish health, proper care, and how to build unbelievable bonds with all of your pets!

ACCESS MY POWERFUL RESOURCES

Proudly serving aquatic enthusiasts for [-- years]

The Aspen Park Vet Hospital in Conifer, Colorado

The APVH Team

Dr. Koi Helping a Finned Friend in Need

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My Crew at Aspen Park Vet Hospital
is here for you!

Give us a call today at

(303) 838-3771
​or
​ (234) Koi-Doc1

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FREE Help From the Expert!

Don't miss Dr. Koi's YouTube channel for TONS of FREE tips and advice

@the1DrQ

Looking for more ways to connect with your pets and enhance their well-being? Then you'll want to check out Dr. Koi's YouTube channel, The1DrQ! It's packed with tons of free videos where Dr. Koi (DrQ) shares her expert advice on everything from animal training to holistic pet care and even aquatic medicine. You'll discover practical tips for positive reinforcement training, learn about keeping your pets healthy, and get a behind-the-scenes look at the amazing work they do at Aspen Park Vet Hospital and the ResqRanch. Tune in today!

Get To Know Dr. Koi Better

Come See Dr. Koi and the Crew on Our Socials!

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NOT FEELING THE LOVE from your old vet?​

It's Not a Crime to Want the Best!​

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Sound Like Your Old Vet?


If you're tired of being treated like an appointment slot, rather than a person, come see us!

  • Do you feel like... your pet gets treated like they're an invoice rather than a beautiful soul seeking care?
  • Does it seem... your old vet immediately throws medications at the problem, without considering other options?
  • Are you frustrated that... every time something is wrong, your old vet wants to do lots of expensive imaging and testing?
  • And when it comes down to it, do you... feel like your pets are just NOT getting the very best in care, despite the high costs?

Dr. Koi Client Reviews

Continuing 40+ Years of Service
​in Conifer, Colorado

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Very kind, caring staff. They are really looking out for the well-being of the animals and their people!​

K. Del Margo​

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Exceptional staff here. They are kind to both people and animals. Additionally, they spend extra time discussing details regarding the condition of your pet. Highly recommended.

A. Ricco

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I have been taking my cat, Katy, to see Dr. Q for years. Last December, Katy presented with some health concerns and I was able to get an appointment very quickly. Dr. Q and her staff have been amazing at helping me navigate the health concerns with Katy! At each appointment, Dr. Q has been great at explaining everything to me and making sure my questions are answered! In between appointments, the staff has also been very responsive if I have questions or concerns come up! Thank you Dr. Q and staff! Katy and I are very grateful for all the support and help!​​

K. Thomsen​

Dr. Koi's Blog

All Things Fish!

2025 Reflections (Written a Little Late)

Saturday, January 17, 2026

Say YES in 2026: Life Won't Wait

Wednesday, December 17, 2025

Reflecting on this Past Year - 2025

Thursday, November 20, 2025

Something's Fishy

Tuesday, October 28, 2025