I have an update on mine.
He's about to leave the tank!!! I think in the last week, he has BIT ME 3 TIMES!!! Not that it hurts, but it scares the crap out of me and I end up jerking my hand and splashing water all down the front of my tank.
I don't know why he has gotten so aggressive lately. He leaves my Perc alone.
Maybe he's just trying to tell me to keep my hands out of the tank!!!
Mendee