I was feeding my rays tonite when it suddenly looked like the male was biting the tail of the female. He was actually trying to get loose from her stinger
. She freaked out and scooted across the tank, dragging him along. After a few seconds he managed to get loose. She stuck him in the front of his disc, just off center. The stinger didn't go all the way through, but he did bleed a little and an area about the size of a quarter around the point of injection was red. I just checked on him and he is fine. Hopefully he will learn to be more careful.