A quick yahoo search for aquarium clubs Canada (page one of a whole lot) gave me the following. Feel free to link from there. I'm sure you can yahoo and google all day or evening. ;)

I'm not aware of all of the communities in the greater Toronto area. Perhaps you will find other groups actually closer to where you reside. Knowing nothing of Toronto area aquarium groups so I'm not trying to specifically criticize anyone, sometimes the group one becomes most comfortable with is not the closest either.

http://faq.thekrib.com/organizations.html  bottom of the page

http://www.netpets.com/fish/fishclub/international/canadasoc.html

Canadian Association of Aquarium Clubs
Contact Mrs. Sarah Langthorne, 95 East 31st St, Hamilton Ontario, Canada L8V 3N9. President David Boehm, fishman@golden.net, phone 519-746-6316.

(from the fins list)
http://fins.actwin.com/dir/clubs-national.php

http://northeastcouncil.org/html/
This is a U.S. group of groups, they have some contacts and events only 2 zillion miles from Toronto though.

Toronto A.S.
http://groups.yahoo.com/group/TASociety/

gee, a chat site, among other things. ;)

The nearest IFGA groups are in Detroit & New England. If you really want to get into show guppies, check out their events and 2004 calendar. See
 http://www.ifga.org/_mainframe.htm

Don't go away from Guppylog, Finatic. But these or links from them might give you a start as you get back in the hobby. "EH?"