I've got a whole list of questions. First, is inconsistent lighting a problem for them?
-If you have a timer on the lights above the tank and the rest of the room at night isn’t light up like Las Vegas you will be fine.
With the tank I'm making, it'll be 1'D, 2'W, 2-3'T out of glass. Are these ok or should it be deeper? Also, with limited space, the tank will be up kind of high, especialy if it's 3 feet tall. Do you have any help on how to make a door, sliding, swing?
-More height the better, they will sleep high during the day on leaves or something sturdy and come down at dusk and dawn to hunt. If you can make the tank deeper than 1’ I would suggest you do because whites do jump down to grab things and you don’t want them falling into the glass. Sorry no suggestions on making a door, but all post pictures of the terrarium im making now that is kinda like what you are considering.
For the floor, I would like to use about 1" smooth river rocks. They would seem to be the easiest to clean. If I shouldn't use them, what other options are there that could be cleaned and reused? I know what ever it is, it needs to be big enough to not be swallowed.
-River rocks are great, the frogs love to hunt on them. You could also try ground up coco husk or washed magnolia leaves. Just no small pieces of bark or orchid substrate.
Is it difficult to find an Australian or blue phase frog? And is it possible for the breeder to know better if a frog is male or female?
-It is hard to tell if it is actually a blue phase frog because the color variation changes so much day to day. It is possible to tell on adults male or female but I don’t know if you are looking to acquire an adult.
When the male frogs call, is it random? Does time of year, day, what they hear around them, affect this? and can you sleep through it?
Is cycling them required?
-After heavy misting they call, or if it is raining outside, or any time Steven Colbert is on. Very strange. It has never woken me up. I don’t know if I would consider it required to cycle them, prolly would be to breed them.