Welcome to CMAS!!!

The Chicago Marine Aquarium Society (CMAS) is dedicated to providing the reefkeeping hobbyists with the richest community from which to share ideas and learnings and monthly meetings and a yearly frag swap to get you the goods.

CMAS Frag Swap - April 23rd 2021
Come to our frag swap for frags, vendor & member booths April 23rd at 9:30am at the Odeum Expo Center in Villa Park.

More details to follow.

If you're looking to interact with the aquarium community, proceed to the forum area.

Contact Us if you were a member of chicagolandreefs.com and we'll reactivate you once we verify your paid membership.