Colorado Aquarium Society

Upcoming Events

  • CAS Board Meeting
    Microsoft Teams
    Apr 30, 7:00 PM
    Microsoft Teams

Due to COVID-19 our Events and Meetings are online until further notice.


Our new 2021 T-Shirt design shown here is NOW available. Check out our store at the link above.

We are working on starting up in person meetings again and hope to have them by the summer.  So Stay Tuned!  While there is no Spring Auction, we do have the Fall Auction reserved with the date set for October 16th, 2021.



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!


Visit US

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

Bethany Lutheran Church
4500 E. Hampden Ave
Cherry Hills Village, CO 80113

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© Colorado Aquarium Society