9/1/11 and weighed 64 g. He had his 1st shed on 9/16/11. I weighed him today on 9/29/11 and he weighs 63 g.
Now is not the time to think about assisting or pinky pump.
First RELAX, if you don't already have them in a 6 quarts tub, with ASPEN bedding. leave them alone for 5 to 7 days and try offering again, appropriated live mouse. Do not offer food more than every 7 days to those that appear picky.
I usually do not start to worry and think about assist feeding before week 6 to 8 depending on the animal's weight, whether it absorb it's yolk and the general condition.