25 lb Castor & Pollux Natural ULTRAMIX® Dog Food – Natural, Grain Free, Duck & Sweet Potato – $18

Petsmart is selling a 25 lb bag of Castor & Pollux Natural ULTRAMIX® Dog Food for $18, which is $2 cheaper than the 5.5 lb bag (price mistake?).
I ordered one, and it’s scheduled for next day delivery.
http://www.petsmart.com/dog/food/…-2858.html