Hi, I am planing on buying a crested gecko, and i just have a few questions about humidity.
1- What should I try to keep the humidity at?
2- How should I go about keeping up the humidity?
3- Ive heard that i should cycle the humidity, what does this mean, and what do I do to do it?
and also would a 25 gallon be too big for a 4"-5" crested?

thanks for the help