fire eel

Hello. My fire eel got itself stuck inside some of the decor, so I very carefully with a plier cut away piece by piece until it finely could get out. I know I didn't cut him cuz I worked my way in from in front og its head. However when he got out I noticed scrapes on both him belly and on top...

So I've recently bought a Fire Eel for my larger Aquarium (It's currently in their with a few Clown Loach and they all seem to be doing fine). I have plenty of Driftwood and smooth rocks in there. (I've also smoothed out the Driftwood quite alot too, being careful not to leave anything that...