I take it cresties arent as territorial as i heard Leachies can be?
Heard Leachies will sometimes attack you if you put your hand in their cage. You gotta just pick them up fast so they really dont know whats going on until they are outside the cage and then they are mellow lol.
Yes, I never had any territorial behavour from my cresties but our leachie will sometimes lunge and bite when first going into her enclosure every once in a while.