My red terror's fravorite's are live shrimp earth worms and hikkari sinking pellets. My red terror is only 4-5 inches long so i have to break the massivore pellets into quarters for him.
I agree. Get the fish trained on pellets before you feed anything else as this is going to be the most nutritious, well-rounded item you can give your fish. I feed mine NLS and Omega One but I know many people use Hikari with good results as well.
After they take to the pellets then begin to supplement with brine shrimp, bloodworms, krill, etc., every couple of days.