I think Petco has a lot more as far as premium brands and oraganic, etc, but Petsmart may have them as well. I shop more at Petco and my local feed store, so I'm not totally sure about Petsmart. The brand I feed is called Hollistic Select. I feed the salmon/fish formula for the omegas.
__________________  The T.U.B. Pack! Toto, Uni, & Bindi
RIP Lord Scrappington Montgomery McLimpybottom aka El Lenguo the Handicapped Ninja 10-12-12 
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