I'm game for a good deal as much as the nest person, so I tried to by a 33g Oceanic Cube today at the Arden Petco. The cashier told me it wasn't on sale and she couldn't mark it down, so I respectfully asked for a manager.
To make a long story short I was ultimately directed to Petco corporate where I had a long conversation with with Leslie D. (888-824-7257 x3621) about the ad and the product. Here final statement was
"We at Petco do not consider a square a rectangle."
I gave up at this point and turned to the glory of the internet, to share this interaction. Anyway, thought this was worth a laugh. I don't take myself too seriously, you shouldn't either.