I've done some research on this project that i'm going to do soon!!, I know that Lyretail Swordtails are very pretty!! I actually have 1 female lyretail swordtail at the moment. I read that MALE lyretails' can't mate, because their gonopodium is too BIG, LOL. So i was thinking about 1 Normal male and one female lyretail, since the Lyretail gene is a dominant gene this means that probably more than 50% of the babies will have the lyretails, but then again the female could be LL instead of having the gene Ll which means that the offspring would have 100% lyretail babies, are you following me? The male has ll genes because he's not lyretail, so i'm hoping that if i breed these two swordtails that over 50% will be lyretail IF they survive. Now anymore details from YOU to help my project go quicker, or more acurate, will be appreciated thanks!!!