Yes, this has been an unusual but really interesting thread. My Texas Cichlid is CRAZY aggressive. When I maintain the tank or do grav vacs, I have to plunge my entire arm in so he gets the picture right away that it is NOT time to eat!!
I tell company to put their pinky in the water, they start to until he "assumes the position" then they usually say some variation of "NO WAY!! You're crazy! You put YOUR pinky in." I like it, it is a nice compliment to my mostly peaceful 55g community tank.
I can actually see his individual teeth, I've never seen any of my fishes' teeth before but I can actually see his. I call him "Killer".
Thank you so much for all your help. I'm back into the hobby with a new vigor!
LOOK! A NEW LEAF!!!!!