I know some people feed their fish vegetables, like lettuce and zucchini, and I've tired that, even apples and they don't like them. If I anchor it in the gravel, they ignore it, and if I let it float about the tank, they ignore it until it floats towards them they they 'run' away. So how can I get them to eat it? does it need to be more 'flavorful or something? should I cook it in soup? (just kidding)