missouri's aquatic hobby and conservation organization
Join us in preserving aquatic ecosystems and enhancing your aquarium hobby experience.
Welcome to
The Missouri Aquarium Society Inc, (MASI) is a nonprofit hobbyist organization focused on aquariums and aquaculture. We welcome anyone with an interest in aquatic life to come to our meetings or events as our guest. We would love to meet you. Our members include beginners and experts, children and adults, casual hobbyists and professional aquascapers, and all are welcome here!
the Missouri Aquarium Society
Membership in MASI helps us bring expert speakers for our speaker series and streamed YouTube programming, funds Darter Magazine, one of the best aquarium magazines in the nation, and supports our efforts in the community and to support aquatic conservation around the world.
Coming up Next from MASI
Next General Meeting
MAY 22 -
Talking Tanks
Biotopes with Tai Strietman
Ichthyologist Tai Strietman, author of the upcoming book "Aquatic Habitats," returns to MASI, triumphantly, to talk about biotope aquariums and how to create them.
Bowl Show
Look at my Livebearers
Send videos of your best livebearers for a chance to win a prize. Please limit video length to 10s.
Mail to: bowlshow@missouriaquariumsociety.com
Next Special Event
Spring Swap
Saturday, May 24, 2025
Local Vendors and Private Sellers Invited.
Over 30 tables of fish, plants, and supplies
Questions?
swap@missouriaquariumsociety.com
Doors open @ 11
All Events Hosted at Jost Chemical Company
Contact Us Today
Reach out to Missouri Aquarium Society for inquiries about aquariums, fish, and our conservation efforts. We look forward to connecting with you!