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Become a CAS Member

Membership Information

Visitors are welcome to participate in our activities/auctions/events, but there are benefits to becoming a member, some of which are mentioned below. We are confident you will recognize the value in this.

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After 5+ years of no membership dues,

Starting 2023 we are collecting membership dues again. 

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A few benefits of becoming a member:​

  • Membership is a requirement for participation in any CAS sponsored event or activity. (eg. Bowl Show, Growth Contest, Breeder Award Points, equipment loaner program, etc.)

  • 80/20 split on sales at the auctions.
    Non-members get only 50/50 split after per-item fee.

  • Great information and help on all aspects of keeping and breeding ornamental tropical fish from local hobbyists who genuinely share an interest in your success as an aquarist.

  • Being notified of any and all special events, field trips, and activities.

  • Being a part of helping promote and grow the club and the aquarium hobby in general.

  • Contributing to CAS's ability to share knowledge and provide speakers and meetings to the public.

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1. Sign up

2. Pay Dues

CAS Membership - Yearly Dues - $20

© Colorado Aquarium Society

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