humidity around 60%-80% is ok?

[CptJack]

70 is too low. 78-79 is the lowest I let my cool side and ambient get.

He meant 70% humidity.

I'm in the south. Right now my household humidity is 67% and most of this summer it's been about 60%. The tanks are sitting right at that. The tubs are a few % higher, so about 70% most of the time. Not a whole lot I can do about that, either. They've had good sheds and no sign of RI though so I'm not sweating it. I will in winter, when heating dries things out.