Hi guys and girls.
I had a random flash back about a minute ago about the tank I had when I was 12. It was a community tank with guppies, swordtails, dwarf gouramis and other things.
I just remember having some fry in that tank at one point. They looked like guppy fry, but when one of the males grew up, it had a sword tail on the bottom of its big flowy guppy tail. Is this a certain breed of guppy
OR
Is there a chance that my male sword tail could have bred with my big female guppy?
I just haven't heard much talk about this kind of thing, so did I get lucky?