sorry about the "a" lol i also agree with above, but to answer the ich question about the powder blue being more prone to ich then other tangs...its kind of true, kind of not...defintely more prone to ich then your zebrasomas but Tangs, that are generally more difficult to keep in captivity such as the Hippo, Sohal, Powder Blue..chances are it will get ich right in the beginning...its just how it goes...they are delicate shippers and should best be treated for ich whether you see it or not, as soon as you get them.