Clown fish help please

[Superomario]

Hi I just started my saltwater aquarium recently and bought two clown fish yesterday. One small one and one big one. The bid one seems ok but isn't eating and the small one isn't eating and doesn't look ok looks like he's lost some color and looking paler than I remember I'm worried he's going to die is there anything I can do to make them eat? I have all this food settling to the bottom of my tank and the fish aren't eating at first I had my power head on and the food got sucked to the bottom so I turned it off and tried feeding them but they are not interested in the pellets. Is there something else that I can feed them