So, I'm the proud owner of a silver arowana that I rescued from my LFS, and he's got an injury from about a year or two ago: He's missing an eye. I've noticed recently that he leans towards the side with the working eye. Is he doing this to compensate, or is there something wrong with him? I only feed him floating food so he won't stare at the aquarium floor, but I'm worried. Am I being stupid, or is there something wrong with him? As a side note, the water has <10 ppm chlorine, ammonia, nitrates, etc.