I updated a picture but I'm not entirely sure where it went? Lol. If he doesn't take it immediately I usually leave him with it overnight. That worked when he was younger but he's not going for it at the moment. He has his own room, the only thing in there is the computer, which is of most of the time as we have a laptop. He has minimal foot traffic as he's upstairs by the spare room, so he only sees or hears us when he comes out for a play or to be fed!

Thinking about it, his heat lamp died the other day, I keep a spare in the house and it was changed within a couple of hours. That may have brought this on combined with his missed strike?

I will try the mouse if he won't take his posh brown rat. I thought maybe a colour change may help?

I know that a gerboa sounds random but they're actually cheaper than mice and the come next day. He was beer keen on mice and has always had a much stronger feeding response to rats.

Thank you all for the responses.