I've been taking care of a tiny white feeder mouse for a few days now. It's made a little house out of newspaper in the cage I have, but I have a few questions.

-I've been feeding it mostly nuts, like peanuts and the like. Are seeds a better choice, or something else?
-There's a bowl of water that it seems to be drinking from, but some people tell me those hamster bottles are better. Should I invest in one?