1 Carefully 2 Yes - if it's got a mouth, it can bite. 3 Depends how big it is. Hey, that's three questions!
If it's only small, when you put your hand in the tank put your palm put. that way if it does strike at youit can't actually attachto anything. That's how I used to try to get our young diamonds. Also even if they bite, keep handling them otherwise they learn that you will leave them alone if they bite.