Here is a dumb newbie question ... My wife and I will take a few long weekend trips this Summer; Las Vegas, San Francisco, etc. If I throw in a couple extra medium sized crickets and mist before I leave, will my mantid girls be OK for 3 or 4 days? I have a cat sitter come in to feed my felines but I don't want to break her in on mantid care neither do I want to bring the "bugs" with me on vacation. What do you guys do? Can they last a couple days with no food?