I bought a dalmatian molly from a pet store that was about to give birth, sure enough, a few days later, I had Molly fry. There are four beautiful fry in my breeding box. One of them is deformed? It looks like right around it's chest it has what looks like an egg. It isn't swimming up and down and it's tail is curled. She gave birth just this morning. Don't know if this helps but ph is around 7.6 and ammonia is 0.25< (new fish made a small spike) The fry looks like it is trying to break free from whatever is on it.