It's a bit hard to tell from the pictures, but I would bet that the deformed fish got caught in a filter intake and never healed correctly afterwards. Hence the bent tail. If that is the case, then the fry should be normal since it was a developmental injury.
I say this because I once had one fry get caught. I saved what turned out to be a him, and named him Bently because his tail was crooked. He went on to live a happy life for a long time.
? Diana Lee ?
? the St. Augustine Redhead ?
http://floridaorchidendlers.com