Are you sure the temps are right? Sometimes incage thermometers go bad (mine is about 2 degrees off). Are you feeding live, ft, fresh killed, stunned? If you are doing FT try heating the rodent up till it's about 100 degrees sometimes this will help feeding responses.

Thats just some stuff I would check/try. If they aren't losing weight I think you're fine. Maybe make sure you aren't bothering them too much (with handling etc.). Is the female gravid? Is it BP breeding season? Sometimes that will cause adults to go off feeding.