In comparison with Zebrasoma flavescens, Zebrasoma rostratum is rather rare in the marine aquaristic trade and a lot more expensive which is probably due to its limited natural range.
Its common name Longnose Sailfin tang alludes to the exceptionally long snout of Zebrasoma rostratum. Though all Zebrasoma species have a protruded snout, that of the Longnose Sailfin Tang comprises in fact about 30 % of its body length.
The colouring of its body may range from dark brown to a jet black, the Longnose Sailfin tang, however, will only show its full colours when feeling comfortably, otherwise it will turn into a dull greyish.
As a relatively peaceful species it will get along well with a wide range of fish species and – provided you have a very large tank and well-structured reef setup-– may be kept together with other surgeonfish as long as there are no similarities, that means, a combination with e.g. a Naso tang, Yellow tang or Hippo tang may work well, but you should avoid housing two Longnose Sailfin tangs in the same tank.
Since all surgeonfish species can be territorial, it is best to introduce several species together rather than adding a new one later on.
Once acclimatized, it is rather robust and may delight its owner many years.