It could be. I have seen owners use F10 to treat RI.
I would encourage you to get a IR temp gun. The gauges you have are OK but they are known to be off and they all end up dead. A temp gun will let you be far more accurate in your keeping.
Are you using the fogger only for the treatment or is it going at all times for humidity? I have had good success with using moist cypress mulch alone for my bloods. Once it starts to dry out I give it a good spray and Im back to good.
In a tub you should not need a fogger and cypress mulch.