I have two Jags and they are both a good size, my bigger one is about 4.5 inches. I can't 100% tell if it us a male or female but I am leani2nh more towards Female based off the shape of its fins. But my question is not about determining it's sex. This particular thing has happened twice now. But it was chasing my dempsy woth my other Jag and shot out a transparent thing from it's "genital" area. It is probably the length of an average finger nail and the end of it is yellow. What is it?