Hi guys, I've got a couple questions that I would like some advice on.

I got my Ball last February from Petsmart (I know, not a very reliable place), and I was told he was five months old. At the time I got him he was 81g which was how much a hatchling should weigh. They also couldn't provide me with a feeding sheet, so either they were starving him, or he was younger than I was told. Since then I've been having a hard time getting him to gain weight, and at this point he's only a little over 300g. Lately he's been refusing the F/T I've been offering him. Everything in his viv is perfect, so I figure the only reason for him to stop eating is because it's winter.

However, him not eating was making me very nervous since he is so small, so I tried giving him a live rat. It was a small hopper, so nothing large enough to hurt him. He took it very happily and ate it. Right now though, this is still too small for him. A large hopper rat would be ideal, but when I was watching him try to eat the rat, he was too timid, and whenever the rat would get near him or touch him, he'd shy away. And then the large hopper tried to bite him so I took it out and returned it.

What I'm really worried about is that he seems too gentle to be able to eat the proper sized rat. I have tried putting him back on F/T but he still doesn't want to eat it. Do you guys have any advice on how I should handle this?