I wasn't referring to the captive bred fish,
@i cant think said over where he is small black tangs (I think he was talking about wild caught black tangs but he may have been talking about CB) go for X price and someone replied that going for X price made it more sustainable. I may have misunderstood the context of the posts since I was probably doing something else at the same time though...anyway I agree with you that there's an immense amount of work (especially research) that goes into captive breeding which is a part of what determines the price.