I may try them on a third of a cup a day, like science hill diet suggests with their food. Its two thirds without wet food recommended of their acana and the other one. 60 g of dry minimum a day each without wet food. Otherwise, 30 g plus 50g of wet. They seem to both have gained weight, Hardy the most chubby i have seen him so far though I have not weighted him again.  I will thus decrease their dry food a bit. They are both very good and eat the dry without much fussing at all anymore.