Not sure how exactly but I got a few seeds in my latest grow. I want to avoid this for the obvious reasons. I have been growing LSD but recently switched to Purple cindy for better yield. I kept some of the LSD and ended up with a few males in the purple cindy which I thought I caught and killed early enough. So now I'm also paranoid that I cross bred the 2 breeds which I guess is ok? IDK Any info would be great