In the symptoms of TB:
An autopsy reveals numerous nodules in the spleen, liver, kidney, heart, intestines, gills, muscles, sex glands, skin, eyes, and the skeleton. The nodules have a curdled consistency and are of brown or white color, Clamped fins, Fish are inert, Fish do swinging movements, Fish hide in secluded places, Fish move in violent rushes, Fish stop feeding, Fish swing on their side, Black discoloration of the iris, Black spots, Bloat, Bloated front part of belly, Brightening (lighting) of body colors, Bump, Fish growth slows down, Fish stop growing, Fraying of fins, Leukoma (spot on an eye), Loss of eyes, Overall body thinness, Popped eyes, Scale raising, Scale shedding, Separation of fin rays, Skin became transparent because of very enlarged belly, Small dark spots, Tail fin is down....
I put the symptoms in bold that I think my jack is showing.
Fish hide in secluded places- He is usually in his cave or in the dark corner under his filter. He has been doing this more lately, but I didn't think much of it since he still comes out when it's feeding time.
Black spots- They don't cover his entire body. Just the two small groups. They looked like a patch of black sand.
Fraying of fins- I noticed when I looked at him in the net, but it may have occurred when I was scooping him up. Just a 2-3mm tear in his tail.