Is the Acana kibble bigger? Three pounds is pretty small, our smallest is five and seems to desire or prefer smaller kibble. Some of the Fromm has small kibble. At 7 months you "might" want to still be looking at using puppy food though. Is the Acana a puppy food?
https://frommfamily.com/about/questi...r-star-kitten/ ACANA Singles | ACANA Pet Foods