Haha, awesome! I hope they're all doing well. In the last six months I've gotten in a few hundred babies from my livebearers, it's been a busy year! Keeping up is a pain. ;D But, anything for my little buddies. =P
As for getting fatter, yes! Usually they thin up for a few days after birth though, and stay somewhat skinnier for a week or so before they start getting a belly again. It is also possible she is growing multiple broods, which means she wont look much skinnier after giving birth and will continue getting larger instead. They do not need to mate again for several months after one night with a boy. lol They can store sperm for up to a year, though most commonly they will give birth for a few months and then need to...re-stock. I have a gold platy that just LOVES to give me two broods per month, she's been giving birth twice a month to 10-20+ fry for about six months now. She gave me a bunch of kiddies about two weeks ago and I'm keeping my eye on her as we speak, actually, since she's acting laborey again. =P So don't be too shocked when that happens. All livebearers can do this.
However, if she gets too bad, there could be an issue...but it's more like she's a very fertile female. I hope you have room to raise the kids, platies grow fairly slow in comparison to other livebearer kiddies, they can take half a year or more to get to a size that people will buy them from you, should you choose to sell them.
I always suggest to people to feed their livebearers peas once or twice per week, especially pregnant mothers. And -always- after someone gave birth since some babies will get eaten and though a good(hate to say it) treat for the fish, too many can cause blockages. This keeps the comfort level up since they DO tend to get blockages and constipation quite often. Just get some fresh or frozen peas, no canned ones, boil them or heat them in hot water in the microwave, let them sit for an hour or so, remove the shells, cut them into quarters and feed them to her. All of your fish will enjoy them as a rare treat. :3 They're healthy, but are also a laxative, as well as a fix for swimbladder and such, so best kept as a tasty treat!
Last edited by Sylverclaws; 07-03-2013 at 10:58 PM..