Every second Saturday Riverfront Aquariums has a 2 for 1 sale (50% off) sale on all freshwater fish and plants including bettas.

This is a great for anyone wanting to add to aquariums or have theirs cycled and need to stock it up.

They also have a membership for your everyday purchases.

The Calgary Aquarium Society membership gets you discounts at Riverfront, Pisces and Big Al's on livestock and dry goods (fish related only)