Hey there,
I have to agree with what others posted above. I have just recently managed to get my guy off off-feed. Your case was exactly the same like mine (except I had him for nearly a year), he never went off feed until 3 weeks ago. He always smelled the rat but did not take him. I did not want to put too much pressure on him so I offered him food on a normal week basis even though he refused 3 times. This was until yesterday when I offered him his f/t rat like normal and he took it.
I guess they just need a time off food sometimes. If he is healthy and his weight is OK there is probably nothing to worry about.
Good luck![]()