is the clown simply spitting the food back out right after it puts it in its mouth? If so then its possible the food is to large in size for the fish to eat easily and its trying to 'bite' off some of it or simply does not like the taste of it. Try to make the food smaller in size and see if that helps.
__________________ Remember dont tap the glass, your fish will think you're an idiot-Anonymous mother
Hmm, is the problem still ocurring? I would think that after six weeks the clown was either eating or dead, also from the time between reponses and posts you didn't seem overly concerned.