fish herpes

Well dang it all, I have more darn fish problems. I was doing water changes today (a big change because I actually had to slide the tank to put some flooring down, but that’s another story). Anyway, once the tank was back I was checking out all the fish to make sure they looked okay (clearly a...

What is this on the lower tail? I'm getting ready to do a freshwater dip as it's been on the tail for over 24hrs and has mass to it. Originally I thought perhaps a skin fluke but they are normally not white I'm told and my cleaner shrimp and wrasse are both known for being active predators of...