Male Jack Dempsey by far. He sill spit rocks at the side of the tank to let me know he wants a snack, this is not just him redecorating, he does that to, but when he wants my attention for a snack he swims to the top and shoots them into the glass until I give him something, then he stops. Since moving to the 125 last month, I've already trained him with something new. Since he's bigger, he eats larger food than most of his tankmates. So as they are in a frenzy on the one side, I tap the other side of the tank for him to go over there and wait for me to give him his massivore, beefheart or raw shrimp. He will stay with the smaller fish eating their food until I tap the other side of the tank, then he will go there and wait. He also swims around my hand when I vac gravel and keeps other fish away from me and when I've hand fed him shrimp he will take the shrimp so gently out of my hand like he want to make sure he doesn't bit me.