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Colorado Aquarium Society

Upcoming Events



our MARCH meeting is Friday 3/10

not the first Friday of the month as usually scheduled
Meeting place will continue to be at Bethany Lutheran Church until further notice

The same schedule goes for our upcoming April and May meetings,

we will meet second Friday of the month instead.

The March, April, and May general meetings will be 
combined meetings with Rocky Mountain Cichlid Society (RMCA)

Congratulations to our February Bowl Show winners:



First Place - Kevin Thurston, C. Sedalia

Second Place - Kevin Thurston, C. Sedalia toys

Third Place - Haley Rockwell, Albino Corys


First Place - Musstafa Filemban, Galaxy Koi Betta

(above is also the Best of Show and People's Choice winner)

Second Place - Dylan Thompson, Betta

Third Place - Haley Rockwell, Koi Betta

Open Class

First Place - Dylan Thompson, crawfish



March Presentation

Ponds BIG and small - why have one in addition to aquariums

Dorothy Martinez, President of Colorado Water Garden Society,

is going to give a presentation on having a pond. 

Save the Date

CAS Spring Auction will be Saturday 4/22

Reinstate Paid Membership

Starting March CAS member sellers at our auctions get 80-20 split

non-members get only 50-50 split
you can join CAS as a paid member up until the start of auction
to be eligible for member split

Bowl Show participation is limited to CAS members as well

Join and support CAS as a paid member here

or in person at the meeting

Members Please Note

We review CAS bylaws periodically to reflect the changing times

Current proposed changes to the bylaws is here

Please review and ready to vote at our April meeting

Don't forget to:

  1. enter your auction items here

  2. enter the bowl show!

NEW  March Bowl Show Categories:

1. Aquascaping

Nano tanks only (10 gallon tanks or smaller, any shape).
Plants and hardscape only, no livestock.


2. South and Central American Cichlids

Includes Oscars, Discus, festivum, severum, rams, jaguar, Heros, Herichthys, Cichla, Crenicichla, Apistogramma, Archocentrus, Symphysodon, Geophagus, Uaru, Vieja, Acarichthys, Astronotus, Nandopsis etc., including all fish formerly in the genera Cichlasoma.

Shown in pairs where sex is readily determined otherwise two fish. Fish over eight inches may be shown as singles.

3. Open Class

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

You can see the monthly bowl show schedule here



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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Contact US

We'll be in touch soon. Thanks!

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