Warning...this post is a bit x rated

From "You and Your Aquarium" by Dick Mills...

"In some species, the anal fin has become modified as a spawning aid. In male livebearers (swordtails, guppys), the anal fin has developed into a rod-like tube that enables the sperm to be directed at the females vent during spawning."

So according to this, it appears that Lucky Steve has ... ehem ... a rather large member! The only fair thing was to buy him a lady swordtail so that he could use what god gave him and make more well proportioned swordtails. So yesterday we bought Leela. They seem to have made friends ok but haven't witnessed any fish porn as yet - maybe they are just dating and Leela is not that kinda fish. I guess we will see in approximatly 28 days.