if you do get a plec make sure the plec is big enough soin no way at all does the wolf think it could eat the plec! or else the wolf will die!
but i have heard a story from one of my friends from a while back that he had to wolfs 1 16" and 1 10" he didnt feed them for like 2 or 3 days and he got up and the 16" ate bit the 10" in HALF! totally in half