I heard that scabbing it a sign of a poorly done tattoo (or improperly taken care of). Make sure you are letting the scabs fall off naturally and not picking at them. My tattoo (week old) is starting to scab up in the very top right of it on my hip bone, and I have been using aquaphor on it twice everyday and doing exactly what I have been told.

With this being said, it seems natural that it will scab up. Just make sure you take good care of tattoo and it should turn out just fine