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Colorado Aquarium Society

Upcoming Events



our APRIL meeting will be Friday 4/14

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 May meeting,

we will meet second Friday of the month instead.

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

Congratulations to our March Bowl Show winners:


Central/South American Cichlids

First Place - Slvador Avila, Albino Oscars

Second Place - Larry Browbn, Gold Severum

Third Place - Larry Brown, Severum


First Place - Laura Pike (also the Popular Choice winner)

Second Place - Larry Brown

Open Class

First Place - Haley Rockwell, purple crab

(above is also the Best of Show winner)



April Presentation

How' the water? Unique and must known facts
if you use city water here in Colorado

Kevin Fehringer, Rocky Mountain Cichlid Society,

is going to give a presentation on the municipal water of
the Colorado's Front Range communities.

Save the Date

RMCA Spring Auction will be Saturday 4/1

CAS Spring Auction will be Saturday 4/22

Reinstate Paid Membership

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  April Bowl Show Categories:

1. African rift lake cichlids.  Those cichlids that are endemic to the African rift lakes (Malawi, Tanganyika, Victoria, etc.) Examples: Cobalt and Red zebra, blue dolphin, frontosa, electric blue, electric yellow, Mbuna, Psudotropheus, Tropheus, Labeotropheus, Metriaclima, Nimbochromis, Neolamprologus, Lamprologus, Julidochromis, Tropheus, Cynotilapia, Cyphotilapia, Eretmodus, Cyrtocara, Sciaenochromis, etc.

Shown in pairs with a divider, if needed.

Fish over eight inches long may be shown as singles.

2. All other non-fish aquarium animals.  Amphibins (frogs, newts, salamanders), Lizards, Turtles, snails, corals, anemones, Echinoderms and any other form of aquatic or semi-aquatic life that is not a fish.  This includes freshwater and marine invertebrates except freshwater shrimp.

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, usually 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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