What will eat spaghetti worms?

[dc4]

I've had enough of these spaghetti worms all over my zoas and their little arms sticking out every inch of my sand. What eats these things?? I bought a sand sifting star fish as I read that they will eat them but I don't see it happening. I've tried pulling out as many as I can manually but dmore and more keep popping up. I know its cause I overfeed but I want my fish and corals to be nicely fed and happy. I just want to get something that will likes spaghetti but will leave the other meatballs in the tank alone...

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