Originally Posted by Lyda
You know, the funny thing is is that we don't think she was pregnant before we got her... a few days after we got her one of our other fish was quite... attracted to her and since then has backed off. So I think she wasn't pregnant until she was in our tank... although I could be wrong, I don't think there's any real way of knowing. Other than the fact that she was tiny when we got her.
99.9% of the time when you buy a female livebearer from a pet store it is pregnant. a female stores fertlized eggs in her body for several motnths until she uses all of them.