As all of you know I have 4 baby siamese kittens, And I have a question, about something I did not have with with the other litter,ok I know you start feeding solid food at 3 weeks,2 of the 4 will eat it, but not the two smaller one;s,should I open their mouth's and put some in or wait intill they seem to want it? Or should I buy the kitty milk and give it to the 2 who will not eat the food? Thanks