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Colorado Aquarium Society

​Upcoming Events

  • Fri, Dec 04
    Hope United Methodist Church
    Dec 04, 2026, 5:30 PM
    Hope United Methodist Church, 5101 S Dayton St, Greenwood Village, CO 80111, USA
    RSVP to join us for our annual CAS Holiday Dinner Party and White Shark Gift Exchange - Aquarium/Fish themed gift in a paper bag - $30 max - No actual fish, please

Announcements 

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​Our Next Monthly Meeting is Friday, November 6

​​​Meetings are free and open to the public.

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Annual Election of Officers - every November we elect officers for the coming calendar year.  Only CAS members are eligible to cast your vote.

 

Presentation - Fish Talk - a conversation about aquarium fish

Presenter - Kevin Thurston

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Due to popular demand once again our auctioneer Kevin will host tonight's talk about aquarium fish.  

Join us at 7:00 pm for something fishy. Enjoy fellowship, participate in the bowl show, and start a bidding war at our monthly mini-auction. 

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Hope United Methodist Church - Friendship Hall

5101 S Dayton St, Greenwood Village,CO 80111

Please note due to church activities our regular meeting room is not available.  Friendship Hall is basement level: all the way down the main hallway and one flight down.  Elevator is available for those who needs it.

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Pre-register your mini-auction sales items at myfishauction.com.

Please note the auction website has a new look.  It should be more intuitive and easier to use.  Check it out!

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- Become a CAS Member -

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Support Colorado Aquarium Society as a paid member for only $20.

Join online or in person at a meeting. Annual memberships coincide with the calendar year, so show your support by becoming a member today! 

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     Benefits include:

•  option to participate in the bowl show

•  eligible to participate in the growth contest

•  eligible for equipment loaner program

•  improved seller splits on auction sales

See the CAS Handbook for additional member benefits.
 

     You may join CAS as a paid member up until the start of auction

     and be eligible for the 80-20 member split. (non-member split is 50-50)

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- Bowl Show -

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November Bowl Show

  1. Catfish. All catfish not listed elsewhere Includes Mochokidae (Synodontis, Upside-down cat, Angelicus, Lucipinnus, Multipunctatus, Lace, Eupterus, etc), Pimelodidae ( Pictus, Red Tail, Shovelnose), Doradidae (Raphael), Ictaluridae (Bullhead), Glass Cats, Bagridae (Black Lancer, Asian Bumblebee), Electric Cat, Callichthyidae (Callichtys, porthole, Hoplo), Pangasius (Irridescent shark), Chacidae (Frogmouth), etc. 
    Shown as singles.

  2. West African and non-rift lake Cichlids Includes Pelvicachromis (Kribs), Nanochromis, Teleogramma, Steatocranus (Lion head or Block head), Hemichromis (Jewel), Tilapia and its derivatives, Chromidotilapia, Pseudocrenilabrus (Egyptian mouthbrooder), Haplochromis not endemic to a rift lake, Astatotilapia (burtoni).
    Shown as pairs where sex is readily determined otherwise two fish.
    Fish over six inches may be shown as singles.

  3. Bred-by-Exhibitor. Any fish that was bred and raised to sellable size by the person showing the fish.

  4. Open Class

 

Bowl Show participants please arrive early to setup your tanks/bowls and fill out necessary paperwork for your entry

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- 2027 Meeting Dates -

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Save these dates on your calendar to the following CAS 2027 events to
fulfill your aquatic appetite:

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1/8      Friday, combined meeting with RMCA
            (postponed a week due to first Friday being 1/1)

2/4      Friday, CAS general meeting

3/5      Friday, CAS general meeting

4/2      Friday, CAS general meeting

4/17    Saturday, CAS Spring Auction

5/7      Friday, CAS general meeting

6/4      Friday, CAS general meeting

7/17    Saturday, CAS summer ice cream social

8/6      Friday, CAS general meeting

9/10    Friday, combined meeting with RMCA
           (postponed a week due to first Friday is Labor Day weekend)

10/1    Friday, CAS general meeting

10/16  Saturday, CAS Fall Auction

11/5    Friday, CAS general meeting

12/3    Friday, Holiday dinner party​

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ABOUT US

The Colorado Aquarium Society, established in 1947, is an open group for aquarists to share their interest in all facets of the aquarium hobby. Our members consist of advanced expert hobbyists as well as beginners and all levels between. Our monthly meetings are open to the public and everyone is welcome!

Contact

Visit US

Visit us in person, usually 1st Friday of the Month, 7PM

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Hope United Methodist Church
5101 South Dayton Street
Greenwood Village, CO 80111

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Contact US

We'll be in touch soon. Thanks!

© Colorado Aquarium Society

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