Will Survivor Survive & The Stalking Fish

My pregnant platy, Vandibuilt, had her babies and didn't explode. Mickey, my spotted white Mickey Mouse platy, ate most of them, but one survived. Right now he is two and a half weeks old, and in about six month he'll be fully grown. I named him Survivor because he survived Mickey's attacking. Mickey is probably the first fish ever to stalk his prey... Mickey was actually going back there where the babies where and stalked to eat them! Mickey got me really worried because he was hanging out back there and we couldn't see him. We actually searched in the tank by taking things out, and we found him behind the cave. Surely Mickey is the first fish ever to STALK IT'S PREY.