A couple of suggestions that have worked for me in the past to get stubborn Cal Kings started or feeding regularly again....
offering live prey items will very often turn a snake on in a New York minute! As always, feeding F/T is much safer, and for the most part healthier for your snake but when they dont want F/T, live will get them going again until you can switch them back.
this is the one that I currently employ for a couple of problem baby Cal Kings...
scenting mice with snakes, lizards, or offering live lizards..
I have two 06 baby Cal Kings that started off eating live pinks then, for no good reason - other than to drive me crazy, just totally shut down and refused to take the pinks!! Both refused every attempt and trick for over two months! Finally, I washed a F/T pink very well and rubbed the musk of very pissed off ratsnake all over it - and some of my blood from the ratsnake bites I received in the process....
This worked like a charm - for one of them... The female Cal King ate without hesitation. I did this three time and she is now back on unscented pinks.
The male on the other hand is on live or F/T lizards... He still will have nothing to do with a mouse. Scenting or not. He is insistent on eating lizards. I am willing to do this because only because he a very, very promising morph. With alot of luck I hope he turns around in the next few months..... fingers crossed..
The bottom line is this; Check your temps and husbandry to make sure he has what he needs.
Try several tricks with the mice including scenting.
Consider cooling him for a month or so.
hope this helps some...
byron.d
it may be s simple as your snake telling you that its time to start cooling for the winter. If not this check your husbandry