I have a sick spiny box puffer. all of his spikes have turned completely clear and he has huge white patches covering his body, some fin rot. this has only happened once before but this is by far the worst it has ever been. I have been treating him with maracyn. it was continuing to get worse after the first 2 days of treatment and is now at a stand still. all of my other fish are fine.
I do not have a quarantine tank at this time so i have been forced to treat the main tank.
so a couple of questions for the experts out there.
-will the white patches completely heal or leave a scar? (i'm worried about that really big one behind his eye that looks like his skin is peeling off)
-am i using the right medication? what medication do you recommend?
-is it best to euthanise a fish that is this sick?
he is still active but hasn't eaten in 3-4 days.
YouTube - sick puffer