Well, unless you have a ton of plants & other hiding places, any fry will be platy food. But that may not be a bad thing with livebearers.
My reference to gonopodia is the male's enlongated (or not so much, cough) anal fin. It's used to fertilize females by touching it to the females vent (anus, poop chute...ahem, "area"). I don't see a dark "gravid spot" on your females (look it up, I'm already feeling TMI-ish tonight, lol).
Mostly, your fish look fat. You might safely cut back on their food a bit.
I agree with Freshy, your neons may well have been unhealthy to begin with & there may have been a bit of postmortem platy nibbling. Most fish will peck at dead ones, it doesn't mean they caused the death.
Keep up with water changing, that's always my first action after any fish deaths.
My reference to gonopodia is the male's enlongated (or not so much, cough) anal fin. It's used to fertilize females by touching it to the females vent (anus, poop chute...ahem, "area"). I don't see a dark "gravid spot" on your females (look it up, I'm already feeling TMI-ish tonight, lol).
Mostly, your fish look fat. You might safely cut back on their food a bit.
I agree with Freshy, your neons may well have been unhealthy to begin with & there may have been a bit of postmortem platy nibbling. Most fish will peck at dead ones, it doesn't mean they caused the death.
Keep up with water changing, that's always my first action after any fish deaths.