I use Blue Dragon (I think) from Shop-rite. My tangs (and other fish) love this stuff
Here is what I do. I purchase nori from my local oriental market....H-mart in Edison is a great store. I then cut the full sheets into quarters and put into sandwich bags. When I'm ready to feed, I'll take two of these sheets and first fold them in half and cut:
I will fold this again in half, and cut again:
Clip it into the algae clip….and here is where things change….start cutting the algae ca 1/16 to 1/8 strips all the way across:
So when you get done you have 10 to 12 cuts on the algae, making multiple small strips:
So now when they attack the algae, they only get a mouth size bit instead of ripping the whole piece of algae off the clip.