Hey guys, this is my first post, and im having problems with my red cap oranda. I have had for 1 year now and it is living alone in a 10 gallon tank. yes i know this is overcrowded but i have a very good filter. recently as of yesterday my goldfish is not moving, and is stuck in the corner. i thought this could be SBD so i fed it de-shelled pease but this did not do anything. I also added to tablespoons of Epsom salt incase it was dropsy. My water parameters are normal and i did a 25% water change. It eats and seems fine but it refuses to swim and cannot gain balance. 
