I would ask the person you purchased it from what it was fed. Then try and replicate for the first several feedings, until you have established a good feeding pattern. If it's more convienent to be on another prey item, you can try and switch it over later on.
Cause when push comes to shove you taste what you're made of
You might bend, till you break cause its all you can take
On your knees you look up decide you've had enough
You get mad you get strong wipe your hands shake it off
Then you Stand