This makes me kind of happy and also a tiny bit mad.
I noticed before that my platy Dora (which I am now assuming is a female) was a little fatter than my Mickey Mouse platy, Mickey (which I am now assuming is a male). I told the guy at petsmart (which I'm assuming is not very "smart") that I wanted two dwarf platties of the same sex so that I would not get any babies, and he said that he could do that.
Well, today, I noticed that Dora is getting VERY FAT. I don't see a really dark spot like I see on my guppies when they are about to have babies, but Dora has a dark orange spot (she is orange). I read about someone's platy a minute ago and he said the platy was "pooping white stuff". I saw just now that Dora is doing the same thing. Mickey is swimming around with her, holding his dorsal fin down. I don't know if that's a sign of anything but...
I'm already pretty much fully stocked. I'm trying to get rid of my guppies, but I still don't want endless generations of platties like I had with the guppies.
When I looked at my tank a second ago (I've been doing it in between typing), I saw them doing these backward swimming things like the guppies do when they are trying to mate.
Mariah