How many times a day does the yellow tang fish eat?

In its wild habitat Yellow Tangs eat all day long, they constantly graze for algae and food on the reef. Consequently, they (all tangs really) should be fed 3-5 times per day in an aquarium environment, and will graze in between feedings. The best way to acheive this many feedings is by using an automatic feeder for some feedings. There are a number of models available, and you can get them online at www.bigalsonline.com