I have two male swordtails in a 29 gallon tank with some male mollies, and we just had about 15 swordtail fry. It's obvious they are swordtails because the molly are dalmation and black, and the swordtails are gold/orange, and the fry are gold/orange. How can this happen? We got the male about 2 months ago from a local fish store, and about a month ago he started getting fat on us, and now he is no longer fat since we found the fry. My wife and I did some reading and it's pretty obvious that the males are the ones with the swords on their tails and both of the orange guys definitely have long swords and look like males. I will try to get some pictures of them, but we are very confused!!