Do most dovii start as shy from humans but aggressive towards other fishes and then turn very territorial even to humans when their large ?
I can't really speak with any authority since I got mine at about that size. I had him in a 55 for a couple of months, and he was a chicken. I upgraded him to a 125 and he has been a different fish since. It was not over night, and he still has his "shy moments", Here is the latest.Mine is around 9-10 inches, he does go up to the front when its feeding time, but retreats to his lair when there is a sudden movment