I am a new owner of a pair of sugar gliders I got them Sunday and Read up on them a before getting them the female Yukie she crabs and nips a little but is slowly getting better,she lets me hold her a bit but still Crabs if anyone has any advice on how to help getting her to stop crabbing and also I have some protein smoothie powder it is berry flavored I was wondering if it would be alright to mix that into their diet?