Daniel R.:
My dwarf refuses pellets completely. I have tried mixing them in at about 10% and he just picks around them.
How long did it take yours to...
Hamster Care & Chat
Fifteen centimetres across the whole base is the safe answer, but honestly if he is burrowing and not barbering, he is probably fine.
https://www.hamstertribe.com/comment/aYtTx9qq