Help: How much humidity is to much?

When I got my new babys I tried housing them in glass vivs but I think they were to big because two of them will not eat. So I moved them all to plastic shoe boxes. I have read through a lot of posts on housing. And i'm confident that my set up is good but my humidity seems high, about 74% to 76%. My tubs are not in a rack I want to build one, but can't at this time. Do I need to try to lower the humidity? If so, How? Should I drill more holes in the tubs? They each have about twenty holes right now. Any help or suggestions would be much appreiciated.

Tony:D

The humidity is too high since you are looking for a target of about 50-55%.
I would make sure that the water bowl is small and on the cool end of the tub.
If it is, then I would put in more holes.

More holes.

The water is on the cool side. Guess it's time to get the drill out. THANKS!!

Tony:D