is he just picky? any suggestions?

[Animals As Leaders]

He was eating live, which is all I have ever tried to feed him. The bedding is care fresh. I only try to feed him once a week so as not to stress him out. I have looked for one of those thermometers and can't find one, what department should I look in? Do you have a picture of one so I know what to look for? I check him over very closely every time hold him and he is clean as a whistle. Curious, active, tongue flicking and clear eyes. I was thinking of trying a bit smaller mouse too as I read that they won't eat if they think it is too big? I have been trying medium hoppers, maybe I should try small hoppers or large fuzzies?

The walmart I go to the thermometers are by the auto section kind of...there like 13 bucks too real cheap. http://www.partshelf.com/acu00891.html

My friend recently bought a new born off of me, and had this happen. I think its a fluke really...I don't think its caused by any kind of health issue. I mean I guess sometimes it could be something serious, but I doubt it. Maybe try a different setup? I personally am not a big fan of aquariums because people like the "grow-into" idea. This is a bad idea because large spaces usually make snakes feel vulnerable and can cause issues with eating regularly. My friends wanted to have a display so I directed them to get a 10 gallon tank at most. They covered the back and the sides with the background paper you can buy at petsmart. Looks nice and will help the snake feel less insecure. This hasn't failed them yet...But I personally use sterilite tubs, and snake rack enclosures. Only feeding issues I've ever had were due to breeding season when I cool them all. I would wait 7-14 days and feed w.e the previous owner/breeder was feeding, or something slightly smaller. For example, if he was feeding adult mice, try a hopper. Keep us all updated! Good luck!

***Also! Your setup seems to lack ample hiding spots...Keep it simple. Have a hide on both the cool side and hot side, and make sure its a small hide. They like cramped small spaces. This may sound weird but its true. I've had some escape, and even when they have the world at their fingertips they choose small crevices to take refuge. Keep in mind snakes are very secretive animals, and don't do much "exploring" in the wild. This is just a survival technique for snakes, and makes sense when you really think about it. A lot of animals prey on snakes, and this is their way of staying alive. If they don't feel secure in their environment they won't eat.

***Sorry, just looked at ur pics again...you have hides on both spots lol. Other then the fact that the tank is too big in my opinion, keep good eye on husbandry. Hot side 90-95, humidity 50%, cold side 78-82.