Hi all, I've noticed one of my platy fry in my grow out tank has curved spine. It's about 2 months old, and seems to be growing, swimming, eating and pooping normally with it's siblings. I've been searching past threads about curved spines, but most threads referred to dying/dead fish. This little fishy is very much alive, so I'm thinking it is not likely to be a disease? What else could it be? The other factor I thought of was nutrition, but this is 1 out of over 100 odd babies so far (several batches) that has a bent spine. If it were a nutrition problem, I would have thought it would be more widespread. The fry are fed between 3-5 times a day small pinches of Nutrifin Max baby fish food formula (they're small, tiny granules). They also get frozen brine shrimp several times a week, and a bit of pea once a week. Could it just been result of genetics, or maybe just one of nature's little mistakes? Seeing as it is only a young fry, is there something I could do to help it's spine develop properly? Thanks EDIT: I do bi-weekly water changes on this tank due to all the feedings. I test weekly, and it is consistently o ammonia and nitrite, and usually 10-15 nitrates.