I bought one male and two female Yellow Wagtail Platies over a month ago. They are still not full size, but they've been growing all the time. A couple of weeks ago I noticed some "stuff" on the females that the male doesn't have: It's kind of a like gravid spot, but nearly transparent. Their body is light yellow, so they are very translucent fish. The spot is where a gravid spot would normally be, other than it's not black (yet). They've stayed that way since I first noticed them, so it wasn't just some passing thing. I'm suspecting they are pregnant (my male Platy wasn't gay after all he just hasn't been that aggressive), and what I'm seeing is a sign of early pregnancy. Would that make sense?