Here's mine. Just under 5 inches, more than one of which has appeared since I got him 3 months ago. This one is a real pig and is the boss of the tank. He chases my 6" distichodus, the convict, and even my AT Dat sometimes. Very unfriendly. I feed just about every possible food. Lately his favorite have been these crumbly dry krill pellets I got at the last Chicago swap meet.
I'm getting a 6 foot 150 soon and I'm hoping that the extra two feet of space will dull his aggression. Until a month ago the distichodus used to pick on him, but he has really turned the tables lately. In the past I've had good luck solving aggression issues (often by adding another aggressive fish, which oddly creates harmony) but so far this guy is winning and there's no more room for me to add more!