If it's $100 then it's worth it especially for a one footer. I don't know but I assume that you would have done some home work before purchasing the wolf or any fish. Since ur contemplating it by posting for an ID. If u get post some pics. Good luck.
#1) It's a rare fish
#2) Cheap in price (especially when aquascapeonline posted aimara @ $650 USD)
#3) Hoping for upgrade as it grow (dream shattered when thinking about how heavy a 220G wide tank is)
#4) Can't resist the temptation on step #1 & #2