Any hope of persuading a CBB to take non-mysis foods?

[Ruth]

Tony - no experience with a CBB but I do have a huge a$$ Naso tang and all he eats is nori and occassionally I put some grape calurpa in the tank. That's it - he won't touch anything floating in the water column, no clams, no spiralina(sp), no homemade goop, pellets - nothing else. Short of force feeding him somehow that's his diet. I've had him for over a year and he is fat and has good colour but I know that I worry about his limited diet. I thought of maybe going snorkelling in the tank and showing him (jk) but every other fish in that tank with the exception of the Conspic Angel eat out of the water column and eat a variety of food.
Sorry no suggestions but maybe your PVC idea will work.