I saw the ad for this at J and J's for the Calgary Reptile Show:
Odgen Legion
2625 - 78th Ave. S.E.
10-5pm Saturday 25th
Its on sunday the 26th too but I didnt write down the time.
It's a lot of tables and vendors. Lots of herps & inverts, some feeder insects and supplies. It's a good chance to see some really neat animals. Don't count on getting any deals on feeders or supplies though!