I'm looking at head and body shape as an indicator here I could be completely incorrect though but tems have a very slender body and elongated head. The thing is azuls and tems share similarities when juvenile but body shape is a tell tale sign from my observations. Again I could be completely incorrect. Maybe certain angles of the pics taken don't show the head shape very well. I'm going to stick with azuls, keep up the good work growing them out they look happy and healthy and begging for food when you take pics too.