Feeding tangs nori - hows the poop?

[Milad]

Just want to get an idea from people who feed their tangs nori. Do you find that there is alot of nori poop floating in your tank after you feed? If so, how do you deal with it? my tangs doesnt seem to "finish off" the nori and when they poop it goes everywhere. And my purple, which is the fatest of them all, runs over to the power head, and pops right ontop of it and all the fish think its feeding time again. im not sure if she does this for a laugh or what.

i know tangs aren't suppose to digest everything but i figured they wouldn't poop it back out in small 1mm-2mm chunks!