Turns out the Canadian Tire I was at (the one on Calgary Trail) didn't even have any pond stuff.... probably out of season by now.
I'm going to order the stuff online... if anyone else is interested, here's the site:
http://cgi.ebay.ca/ws/eBayISAPI.dll?...e=STRK:MEWA:IT
$15.49 includes shipping... pretty good deal imo.
-Richer