Salt Speak – Episode 3: Coldwater Marine Aquariums

Alright, alright…I’m back with another episode of Salt Speak! In this third installment I sat down to talk coldwater marine systems with Stu Wobbe. Stu is the owner of Coldwater Marine Aquatics in Oregon, USA.

In the first half of our chat we speak about temperate and coldwater marine aquariums. We dig into equipment and maintenance requirements and how they differ from tropical systems. In addition, Stu introduces us to some of the interesting fish and invertebrate species that are available to coldwater hobbyists.

Then we change gears to focus on his business, Coldwater Marine Aquatics, including how they got started (hint: a hand-written note started it all!). CMA is permitted through Oregon for commercial collection and they also use self-imposed restrictions to lessen their impact on the natural environment. Since coldwater systems aren’t as mainstream, we spend time at the end of our chat to focus on a variety of resources available to hobbyists interested in learning more.

Do you keep a coldwater aquarium, or are you interested in starting one? Let me know in the comments below. Also, don’t forget to share this episode with your fellow hobbyists.

Learn more about coldwater marine aquariums:

Related posts:


If you enjoyed this post, subscribe to get our new posts in your email.
About "Caribbean Chris" Aldrich

"Caribbean Chris" Aldrich is co-founder and Director of Saltwater Smarts, an avid SCUBA diver, and contributor to a live rock mariculture project in the Florida Keys. He has been an aquarium hobbyist for 20 years and his current aquarium is a 127-gallon Carib reef biotope.


  1. Paul Baldassano says:

    Very nice presentation and I am in awe of the colorful specimens you can collect on the Pacific coast. As you probably know I have been keeping a small temperate Atlantic tank on and off for probably fifty years but our New York creatures are interesting, but not very colorful. Our water here is also a lot warmer than the Pacific so I can get away with water in the low 70s rather than the 60s. I build my own chillers which would not chill the water down to those lower temps. I love what Stu is doing and I am sure he loves it as I still wade around in a tide pool every week in the summer.

    • "Caribbean Chris" Aldrich says:

      Thanks for watching, Paul. Coldwater is really a whole different world. To me that’s the most exciting thing about it, so much I haven’t seen before. :)

      I’m with you (and Stu) on tidepool exploration. It’s always an adventure with something neat to see/find.

  2. Hey Chris,

    The presentation was spot on! 😀 As far as I can see, coldwater marine aquariums are an entirely different ball game that I can only observe and praise at this point. 😛


    • "Caribbean Chris" Aldrich says:

      Thanks for your kind words, Rob. Glad you enjoyed it. Coldwater and temperate marine aquariums are fascinating and definitely outside the norm, no doubt!

Speak Your Mind