he is a little larger perhaps 13in, but his claspers are hardly noticeable...so I don't believe he is mature...it's only him and 2 females around 11-12in in a 8x4x4...
I just think that the others smelled the injured rays slime coat, and went at her thinking it was food...idk what else to think!
I mean tomorrow I can try an rig the divider better...but its kinda hard to do so in this pond!