Alrighty, I know how to sex swordtails... But does anyone know how old they have to be before you can tell if it is a male? Or maybe how big they are? Because I can't really remember just how old my swordtail is... It was cold thats all I really remember. But its probably about an inch big... Big enough that I was sure I would know if it was male or female. But lately it looks like its developing a sword on his tail? Theres nothing sticking out from the tail. theres just slightly different colourations on his tail now.
And just before you laid dead weight upon its shores, I stung you in the face for that's the nature of my core.