Nori from my local Asian Grocery store...sushi grade. Cut in 4" square sheets and then cut halfway up in 1/2 strips. Soaked in Zoe and/or Selcon about 2 out of every 3 sheets. 1-2 pieces per night.
i found my yellow tang loves blanched asparagus he gorges himself on a whole stalk.Then he wont eat for like 3 days and flys through the tank with energy.