I have just noticed a few days ago that our silver mollie is not swimming normal. She is always swimming with her tail hanging down (almost vertical)rather than horizontal. She is still eating but waits for the food to come down to her (the odd time she makes it to the top). Any ideas what would be wrong? It seems like she can't move her tail at all and relies on her fins?! She has had two batches of babies since we've had her but not in the last month I would say. Everything else looks normal? Thanks for your imput! *GOLDFISH*