
I didn't see this sore yesterday, but he seemed out of sorts. He wasn't doing laps around the tank in the usual fashion. Late last night, I saw what I thought was a little snail behind his eye. I tried to net him this afternoon, but I'm limited in mobility at the moment. Rather than stress him out more and cause further damage, I left him in the 75 gallon and started MelaFix/Pimafix.
If it wasn't a snail, I wonder if it was too much of this:

You can see Otos like him. He swats them away about 90% of the time. I'm worried because his appetite is low and he's not as active. Any advice anybody could provide would be most helpful.
