Hello all, I have a female 6month old Presa canario, she's a fairly active dog and I figure a decent size for her age. Lately I have found she was was just tearing through the food i got her (same as what she had before 8weeks) which is purina pro plan after a while searching through the Internet reading up etc I find some people find this not to be a great food. I went out today got her some large breed innova (reccomended) and see that the protein % (although better quality) is 24 compared to the 28 of blue buffalo (tried her on it stomach wouldn't settle) so now im left wondering at 6 months does she need the low protein or should I get her something like orijen or taste of the wild with a much higher protein content? She is 24in withers and 74 lbs slim and active. I would love the help guys