I have been successfully keeping some darts for about a year now and decided to set up some tree frog tanks. I had two babies in a small 15 high they were about the size of thumbnail darts. The one that was sick - a few posts back unfortunately passed away. The other is quite plump and happy.

I have what appears to be two males in a 37 gallon. It has a great stuff/coco fiber background that has three good size perches for them and a waterfall with a small pool for them to soak in. The top is glass and covers the entire tank. The humidity is super high (alot of condensation on the glass). What percentage do whites tree frogs thrive in? I have read so many mixed opinions that I don't know what to believe. Also- both are calling at night. Wok- Wok Wok- I have read that females will call also, is this true? One seems to be the dominant male causing the other to hide. They are almost exactly the same size. The one hides during the day in a VERY wet area below the waterfall and I am worried that it is not healthy for him. He also sits underwater in the pool??!! I have seen him do this for two three minutes at a time. He comes up for air and then goes back down. Anyone else ever seen this?
The other one spends every waking moment trying to escape and from lights out till morning is all over the tank and has trampled and killed three plants in the last two weeks. I hate plastic plants so does anyone have any recommendations on "Whites proof" plants.
In regards to the male dominance thing do you think it would get better or worse with the addition of a female and what is the max number of frogs in a 37? One is about three inches long and the other is 2.5 inches. My goal is to move them to a tank that is 24x24x36 from glasscages.com in about a year. Also- is it true that you can over supplement tree frogs?

Thanks so much,