In January I bought a girl who was used to a 15 qt shoe box and made the mistake of putting her in a 20 gallon glass viv. It triggered a 3 month hunger strike. She lost quite a bit of weight during the ordeal. Now she's back in a shoe box and doing much better. She's always just freaked out when I try feeding with tongs. Very shy feeder.

I just lay the f/t rat pup under the newspaper where she is in the evening without bothering her and it's gone in the morning. It might work for you. It's really really important to leave them alone during these kind of hunger strikes so they can get used to their new setup peacefully. Frequent intrusions and food offerings will only drag it out much longer. Please learn from my failures!