107Barney - thanks so much for the suggestions. I will make sure to check those sites out and read up on the FAQ.
Nancy1999 - I don't change the brand of food, just the flavour, which I hear is OK if actually doing that and not changing the entire brand...I could be wrong! But...I hear you should change it up to avoid allergies.
I did get them a probiotic but hear that I need to supp with a multivitamin?
I don't know this is just so confusing. I definitely don't want them getting undernourished! I just want them have the best diet possible.
I will keep researching!