Feeding Seaweed

[marie]

Originally Posted by michika

I have 6 med-large size tangs and I feed a 1"x4" strip every day. It doesn't last very long, maybe 10 minutes.

I'm not trying to start a debate about how much to feed fish but I'm curious, that works out to less then a square inch per fish, providing they all share equally. Why bother feeding nori at all?