Hey OldMan47, I swear there is some deja vu going on with these breeding posts, lol. I do love that Molly you have there, and your fry look exactly like my baby Tuxedo Platys when they first enter the world.
Hi matty, I just leave mine to natural selection, I don't bother with breeding traps seperate tanks, and my live bearers just won't stop, at one time I had 20 Platy fry and 10 Mollies. Now, I haven't got any aggressive fish in my community tank so I couldn't vouch for how long they would survive, but my fry tend to linger about the base of plants and if a bigger fish comes near they just delve into the plants leaves. I'll be after getting some Angels so I'll soon know if I need a quarentine tank, lol.
Also, you said you have 1 female and 2 males? She may be too stressed out as well, with 2 males arguing over her. I was always advised to try and go for a minimum of an even split between sexes. I have 3 female Platys and 3 males, I also have 5 female Mollies and 1 male Molly. Now, my Platys breed like rabbits, so in future I will stick with 5 female and 1 male. My mollies seem to do ok with that. In fact because of the uneven split all my females seem to search for the affections of the male, poor sod, he must be well tired, lol.
Mick