Colorado Aquarium Society

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​Our Next Monthly Meeting is Friday, September 11

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

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Presentation - Build yourself a large aquarium at home

Presenter - Scott Chase

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More than once in our fish keeping journey we have thought of a bigger tank.  What if they don't make one large enough?  Scott solved the problem by building an aquarium as large as he wanted given the space allowed.  Join us as he shares his journey in building his large marine aquarium - more than once!

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This will be a combined meeting with Rocky Mountain Cichlid Association, the other thriving fish club locally.

 

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 Friendship Hall is at the Basement Level of the church

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

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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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- September Bowl Show -​

1. Small Characoids (Tetras). Neon, Cardinal, Serpae, Black, Flame, Glowlight, Head and Tail light, Congo, Hatchets, Pencil Fish, etc.
   Shown in pairs where sexes are readily determined, otherwise two fish.
   All fish in this category will be less than six inches at full size/

2. Miscellaneous other fish. Include Large Characoid fishes over six inches (Piranha, Headstanders, Silver Dollars, Barracudas, Distichodus etc.), Knife fish (Black Ghost, Glass, Clown knife, Apteronotus, Chitala, Notopterus, Rhamphichthys, Cerapo, Eigenmannia etc.), Electric eel, Brackish fish (Scats, Monos, Puffers, Archers, Mudskippers, etc. but excludes Mollies), Mormyrids (Elephantnose, Baby Whale etc.), Osteoglossidae (Arowana), Pantodon (African Butterfly), Mastecembelidae (Fire eel, Tire Track Eel, other eels ), Nandids (Leaf fish) and naturally occurring fish that do not fall into any of the other classes (excludes all catfish).

3. Goldfish & Koi; all strains.  Shown as singles.

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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- Remaining 2026 Meeting Dates -

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Mark your calendar to reserve these CAS 2026 event days to
fulfill your aquatic appetite:

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10/2       Friday, regular meeting

10/17     Saturday, Fall auction

11/6       Friday, regular meeting

12/4       Friday, Holiday dinner party​​