I am not breeding them anymore now since there is coming to much of offspring around here, would be difficult for everybody to sell them all.
To keep them from breeding, I keep them 60-70%.
For breeding you can raise humidity to 80-90%.
Like kisa says, high humidity to long might pose a problem due to bacterias and fungi.

The waterpool isn't all of a problem, a healthy frog will get out, 90% of the time a drowned frog already was sick and got in the water for relief.

In this case I think you can try breeding them.
You're male is calling and you're female ate more then usual.
She might be or almost will be gravitate with eggs.
Just feed some more and if you feel like you're female is heavy with eggs, just run a misting or raining system, good chance they will present you with some nice eggs in the morning