Marcel is 3 lbs and gets 1 oz. per meal (same as 1 medallion) (am and pm)
Wylie is 6.5 lbs. and gets 2 oz. per meal (am and pm)
With any diet, it's good to start somewhere - and then feed to condition, meaning, increase/decrease based on how your dog's ribs feel. Since the recomm. for your baby is 1.7, but Mocha is underwieght - I'd def. go for 2 oz to boost him up a bit.