I was out of town for 2 months and needless to say, the roommate I put in charge of my fish did a terrible job. Water conditions were very bad when I returned and after doing around a 50% change. I have been treating the water with sea salt and doing 30% changes every 3 days. I cant tell if the lesion like markings by the gills and the white make on his head are getting better or just staying the same. I just got done testing my waters levels for PH, Nitrate ect (everything is ok) The tank is a 55G and his only companion for about a year is a jack dempsy thats about 4in. Im not exactly sure if this is HITH Its just my best guess and what I have been treating for. Its hard to see in the photo but there is a bit of redness (like a dot) in the lesion next to the gill. I don't see nearly any craters on the head though.
Any help would be greatly appreciated.