[naesco]

I think I can answer some of the questions asked here.
The reasons why tangs are the subject of so much concern relative to their care are twofold
1. Tangs are beautiful endearing fish. Take a look at an angel for example. They may be brightly coloured but who could fall in love with them? OK I may just be a tiny bit biased.
2. Most of my fish is dying, my fish has ich, my fish is sick or they are killing each other threadsinvolve tangs when you think about it right.
IME most of the problem, provided you buy a healthy specimin is environmental ie. stress caused by other tankmates in a small tank or so so water conditions.

I think a lot of the controversy on the tang issue would be avoided if the original posters who are experienced tang keepers prefaced their comments with a caveat such as "The powder blue tang is an almost impossible to keep species but I have had success by feeding...........whatever.
No one would consider talking about mandarins without prefacing their remarks with the necessity of an established tank with high pod populations would they?