I keep buying and later getting rid of my Platy over and over...it's the little babies that keep drawing me back! I've got a couple babies now, 2weeks maybe, mixed colors and so adorable.
Is that a baby only tank or livebearer only tank?
I've noticed that babies will be brave if they learn other fish don't want to eat them. Usually other livebearers will learn over time not to eat them. Mine always stopped and watched the little guys swim by, it was kinda weird.