Colorado Aquarium Society

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Our Next Monthly Meeting is Friday, May 1 

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

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Back due to popular demand! Join us at 7:00 pm to enjoy a casual conversation about aquarium fish with our auctioneer Kevin Thurston.

Bring your questions.  Share your insights with fellow fish keepers.​  There will be interesting conversations about some fish you may or may not know.

What better way to welcome May into our lives than hanging out with fishy people?

(copyright/trade mark pending)

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Hope United Methodist Church - Fellowship Hall

5101 S Dayton St, Greenwood Village,CO 80111

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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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- May Bowl Show -​

1. Sharks and Loaches. Sharks from the Cyprinid Family including the Red-Tailed, Rainbow, Variegated or Calico, Bala or Tricolor, Apollo, Arrow, Flying Fox and Black Shark genera Labeo, Labeobarbus, Epalzeorhynchos, Balantiocheilus and Morulius (excludes Dennison’s barb sometimes called Dennison’s shark and all catfish such as iridescent shark), loaches from the Botiidae, Cobitidae, Balitoridae and Nemacheiliidae families including the Kuhli, Weather, Clown, Royal Clown and Hillstream loaches. 

   Sharks shown as singles.

   Shown in pairs for loach species where sex is readily determined (Acanthopthalus spp.), otherwise two fish.

   Fish over six inches may be shown as singles.

2. Livebearers of the Poecillidae family. Mollies, Swords, Platys, Guppies & all other fish of the Poecillidae family. Excludes Anableps, Chondrichthyes, etc. which may be called livebearers but are not in the Poecillidae family.

   Shown in pairs.

3. 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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- 2026 Meeting Dates -

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Here are the dates of CAS events for 2026.  So please reserve these days to
fulfill your aquatic appetite:

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1/9         Second Friday of the month.  Meeting postponed a week
              due to first Friday is the day after New Year’s Day.

2/6         Friday, regular meeting

3/6         Friday, regular meeting (cancelled due to adverse weather)

4/10       Second Friday of the month.  Meeting postponed a week 
              due to first Friday is Good Frioday.

4/18       Saturday, Spring auction

5/1         Friday, regular meeting

6/5         Friday, regular meeting

7/18       Saturday, Summer social

8/7         Friday, regular meeting

9/11       Second Friday of the month.  Meeting postponed a week
              due to first Friday is the Labor Day weekend.

10/2       Friday, regular meeting

10/17     Saturday, Fall auction

11/6       Friday, regular meeting

12/4       Friday, Holiday dinner party

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