Well, he is definitely sick. He has the typical labored, rapid respiration of velvet but the lesions look larger than I would expect for velvet. I think of velvet as looking like the fish has been powdered. I'd get him out of your
DT and into a hospital tank ASAP.
Was the eel in
QT because he was sick or new? Did you
QT the tang? Is anything else acting oddly?
