Yes, But these have been in captivity since they were very,very small. The same with the blue hippo tang. Aquarium life is all they know, and are use to commercial foods ect. So in a sense they are tank-raised. Here's some info i dug up on them.
"These fish have an incredibly high survival rate during the sale and shipping process. They are collected from the wild from post-larval swarms. Collecting them at that size is very ecologically-friendly, as the smaller fish have a low survival rate in nature and collecting them at that size to be completely tank raised gives them a very high survival rate. This leaves more of the larger, survivor fish in the ocean rather than being collected. During the months these fish are tank raised before being sold, the fish are socialized which makes them stress far less when they are introduced to the home aquarium."