fox face

My One spot foxface has been through alot, but recently he has been extremely healthy though always eating, nice and chunky, active and eating algae. Today after coming home I saw a large lump/gash on his left side near the base of his larger fin. Not sure what happened if he had a brush with a...

Need help with this. Spot on fox face. He's acting fine I've had ich before and lost a fox face to ich before I took all fish out and treated them for everything under the sun my tank went 85 days without fish so ik not 100 % but I'm pretty sure it's not ich in my system. One thing i was...