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
SEPTEMBER -
TALKING TANKS
Approaches to Fish Breeding
with Lowell
Lowell Dunnaway, from the enormously popular You Tube site, Lowell's Fish Lab, will visit MASI to talk about methods of breeding Fish. Sounds fun.
Bowl Show
Oddball Odessey
Get your strangest fish together, cause it's time for the Oddball Odyssey at this month's Spectactular Bowl Show!! Send us your videos, 20 seconds limit.
Mail to: bowlshow@missouriaquariumsociety.com
Next Special Event
Fall Swap
Saturday, Sep 13, 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!