Hi mat692,
My Silver Dollars used to love to be fed, Lettuce leaves, Zucchinni, Cucumber, Shelled Peas, Spinach Leaves, Silverbeet Leaves and anything that is plant like really, if you don't supply these sorts of things for them, they will strip you're plants bare, if you have any in the tank that they are in.
Good Luck :bounce: :bounce: :bounce:
Lynda