I believe my male was around 3 " when they 1st bred, female smaller. When they pair up you will know, because the other 3 will start to look more and more ragged, or you will find carcasses.
Once these 2 paired up, nothing else in the was safe, nothing else could stay alive in the tank for long.
Once these 2 paired up, nothing else in the was safe, nothing else could stay alive in the tank for long.