Greenwater Aquarist Society


Welcome!  Greenwater Aquarist Society is an all species, general-interest Aquarium Society in the Greater Chicagoland Area that has been around since 1957!  Come to one of our events or join us as a guest at one of our monthly meetings.   Meet and socialize with others interested in the aquarium hobby and get access to fish and plants raised by hobbyists. 
Sign up for our Email List - Receive information about our Auctions, Swaps, and Meetings.

Please Sign-up again if you did not receive e-mails sent Sunday 5/21/2023 and Thursday 5/25/2023.

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Have Questions? Contact Us - One of our volunteers will get back to you as soon as possible.

Greenwater Aquarist Society of Chicagoland Swap:

Saturday June 24, 2023 10am - 1:00pm CT
Zion Lutheran Church, 17100 69th Av, Tinley Park IL 60477
Open to the Public.  Parking is Free.
Buyers will be allowed in at 10:00 am.  Free -- No Entry fee!

Greenwater Aquarist Society of Chicagoland's Swap Meet
Buy hard to find fish, plants, and dry goods directly from local breeders and vendors in a farmer's market atmosphere at the best prices. 
The swap will run from 10:00 am to 1:00 pm.
Free -- No Entry fee!
Doors will open at 8:00 am for vendor set up. 

Hope to see you at the swap!

Greenwater Aquarist Society of Chicagoland Meeting after Swap:
Saturday June 24, 2023 at 12:30pm - 4pm CT

Please join us at our Monthly Meeting.
Meetings are open to Members or attend as a Guest.
We will have Refreshments, Program, Bowl Show, Auction, and Raffle.
Cost: Please bring an appetizer, dish, or dessert to share (Not Mandatory). 
     No Cost to Members, you may bring a guest.
     No Cost for Luncheon.
     Auction -- Members can bring up to 10 items and keep 100% of proceeds
     Guests are welcome to purchase items.
     RSVP Not Necessary.

(10:00 am Swap Meet)
12:00pm: Meal & Refreshments. We will be serving Corned Beef and Sides.
As always, members are more than welcome to bring appetizers, snacks, and desserts to share!
Enjoy a meal and socialize with other hobbyists about your specific interests.  Being an all species club with a large monthly attendance, you are sure to find that there are several other members with similar aquatic collections to your own.
1:15 pm Bowl Show
1:30 pm Club Auction! Members are encouraged to bring fish, plants, decorations, and aquarium supplies to be sold at our mini auction. Limit of ten items per seller.

2:30 pm Prize Raffle.  

3:00 pm Program A: Moderated Discussion Tables
3:00 pm Program B: Club Business and Board Meeting

Bowl Show --   All Species
Prize Raffle 
Driftwood, Flake Food, Pellets, Sponge Filters, Gravel, Sand, and more.

Fundraising Raffle Note:  Listing of brand names indicates items donated to Greenwater Aquarist Society by those manufacturers.  Greenwater wishes to thank those manufacturers for their generous support. 
Monthly Auction:
   Donations welcome for the Monthly Auction.
   BAP & AHAP donated items.
   Members can bring up to 10 items for 100 percent proceeds.
   Only Members can sell in the Monthly Auction.
   Pricing options available for items:
      1. It sells for what it sells for
      2. Minimum Bid
      3. Buy it Now - members have option to sell before start of Auction

   Guests are welcome to purchase items.

Hope to see you at the meeting!

Support Our Sponsors
Questions? Contact us using this link
If you or someone you know is interested in speaking at a Greenwater meeting please contact Our Program Coordinator using this link

Membership applications will be available at this swap.  

You may also download, fill out, print and bring with to event.

Click here for GWAS Membership Application as a fillable PDF.

Please check back for the latest updates regarding our next scheduled meeting.

Thank you,

Greenwater Aquarist Society

We've always got somethin' goin' on.


Saturday June 24, 2023 - Swap / Meeting Combo 

Saturday July 29, 2023 - Swap / Meeting Combo 

Saturday August 12, 2023 - Member's Summer Party 12pm  

Saturday September 2, 2023 - Swap / Meeting Combo 


Saturday September 23, 2023 - Swap / Meeting Combo

Saturday October 28, 2023 - Swap / Meeting Combo 

Saturday November 18, 2023 - Swap / Meeting Combo 

Saturday December 16, 2023 - Member's Holiday Party 12pm 

Saturday January 27, 2024 - Swap / Meeting Combo 

Saturday February 17, 2024 - Swap / Meeting Combo 

Saturday March 23, 2024 - Swap / Meeting Combo