I don't have much information on the subject but i will tell you what i know.

The toads need to go through a slowing down period. The temperature must drop and they will eat less. In the spring they will become active again and thats when the "rains" begin. If you are lucky they will lay eggs.

Make sure that all toads are mature and strong enough to be cycled so they have the best chance to survive.

Of course, this was very vague but hopefully someone with more information/experience will chime in