did I spell that right?

I have read it is a nocturnal feeder, but you can feed it when the tentacles are out? I have noticed this a couple times in the evening...

I have read you can feed it small bits of seafood, up to the size of the polyp... but I don't want to overdo it.. so far It seems to be doing ok of the cyclopzeeze I feed the rest of the tank with...

If I do feed it, do I need to feed all the polyps, or will the whole colony derive nutrition from what one, or a few polyps eat?

Thanks guys.