I got my 2014 nic on the 8th of October, and I've tried feeding him twice. The first time I tried a F/T adult mouse. He struck repeatedly, but never wrapped, and there was a lot of hissing. I thought maybe he didn't feel secure enough in his tub, so I moved him into a 15 quart and blacked out the sides and top. He's got a 90 degree hot spot, ambient temps in the high 70's, paper towels and a water bowl. He just shed about a week and a half ago (all in one piece) so humidity is obviously good. I've only handled twice- once when I first got him, and once for cleaning. Otherwise he's been left alone.
I tried feeding him a F/T hopper after about a week in the new setup, and it was the same thing. Defensive strikes and hissing. The breeder had him on live, so I'm wondering if I should try live, or if that would make it worse? Am I doing something wrong? Any tips or advice is welcome.