They would have to be live.
Unfortunately here they donīt sell f/t mice/rats or anything (just pinkie mice) and I just canīt bang the mouse to kill it myself, so I have to feed him live. But Iīll try it in his next feeding.

As for hamster, many thanx for ur note as I didnīt know they were not good to feed. I havenīt given him any yet as they have been too big, so now I will definately not try them.

Many thanks for your help!!