Hello, I'm new to this site..........I have a tank set up that holds a nursery containing red platy fry, which were born on 4/01/09. I had 30, now I have 29 as I found 1 dead earlier. All of my fry look like they are shaking, it appears to not be normal. They do not have any spots on them and the water/tank has been cleaned regularly. They all ate good and I noticed 2 at the bottom of the nursery during feeding time, since then I've lost 1 and I'm afraid of losing more. I've become their mommy for a month now and it breaks my heart. Does anyone know if this is normal or if not, please tell me why they are acting like this? I appreciate anyone's input. Thanks!