He's sizen ya up, hatching plans for your demise. Lol yeah all jokes aside they sure do look like they are always thinking about something. Ik the 3 I got recently, for my 55g planted tank, all sit there and look at me with such inquisitive eyes. Atm I got my 3 sitting in a small guppy tank untill the last 2 big angelfish go downstairs into their new tank. I just don't trust putting the puffers in with angels that are gigantic in comparison.