SuperPet was a Canadian pet store chain, and had only about 18 stores around the country -- all were super size stores about the same as a PetSmart.

From the site --
PetSmart Canada took over ownership of 18 Super Pet stores; however, the stores will continue to operate under the Super Pet banner until they are remodeled as PetSmart stores. The stores will be changed over the next three months.
Sadly enough too -- I liked a lot of the Ferret stuff that SuperPet had, and I'm afraid that since they're transitioning into PetSmart, that might be lost (Super Pet was my preferred shopping location). My BF let me know about the sale -- we might go back and get some more stuff for the fishtank this week.