Definitely look out for any squabbling, bullying, fighting or injuries if they are squeaking. Sometimes a change of environment (eg the move to you) can make them fall out. If they do start fighting they can kill each other. It would be an idea to have another cage handy or a large plastic storage bin you could make into a bin cage later, just in case. Otherwise it's usually recommended to leave them alone to settle in for the first 2 or 3 days, then start taming
