Here is a video I like to look at if I ever wonder how my 3 females are doing. In the past I looked back at this a lot and looked very closely at my females to see if they needed to be separated and placed in the breeder. Now, since my female tank is overcrowded and there are tons of plants, I just don't pay attention to it anymore. Also would like to add that I have an albino female, so the fry are usually albino too, making her gravid spot light, not dark like most are.
gravid spot: term used for livebearing freshwater fish. Gravid simply means carrying and developing eggs. Usually a dark spot near the back fin that grows bigger as the pregnancy progresses. That big black spot is actually little tiny guppy fry all jammed in there waiting to be born. That's why you can start to see their eyes after a while, especially with the albino females.
breeder: A tiny cage-like container that attaches in the tank to calm and protect the female when she is ready to give birth. Usually she's above a grate/funnel like system that lets the fry fall down into safety from being eaten.
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