The 10 gallon will be good until it starts to grow. Keep the temperature on the cool side 78-80 and the warm side you want the tank to be 88ish. You want to have a warm side and cool side if possible so the snake can choose where it wants to be during any given time. It may be more difficult to regulate the temp to that but you can do it, several options and for humidity 50-60% is good. I could give you a rundown on everything but I'm sure other people will chime in and I don't feel like getting in a debate with using a heat emitter.