If this tang is going to join you re 55 gallon...GET RID OF IT...tangs need a minimum of 100 gallons....You should research you re animals before you buy. that fish is an ick magnet and in small setup like you res will die real shortly and cause the rest of you re animals to get ick aswell.
Maximum Size: the Acanthurus leucosternon grows up to 10 inches.
General Size Specifications: The small size will come to you generally 1 to 2 inches; the medium generally 3 to 4 inches; the large generally 5 to 6 inches.
Minimum Tank Size: The Powder Blue Tang prefers a tank of at least 100 gallons with plenty of places to hide & swim.
Diet: The Acanthurus leucosternon is a herbivore and likes to eat Dried Seaweed (best), marine algae, mysid shrimp, Spirulina, Romaine Lettuce (blanched) , fresh seaweed, and other meaty treats.
Level of Care: The Powder Blue Tang is a high maintenance fish.
Behavior: The Powder Blue Tang may act peacefully toward other fish.
Hardiness: This is not a hardy fish.
Water Conditions: Keep water quality high (SG 1.020 - 1.025, pH 8.1 - 8.4, Temp. 72 - 78° F).
Range: Maldives, Sri Lanka.
General Notes: The Acanthurus leucosternon is also known as the Powder Blue tang is one of the most prized fish in the hobby but many disregard the specialized care and attention this baby blue beauty requires. Though a weakness that is common in the tangs, ich is a very common problem with this fish. The Powder Blue Tang is often very aggressive with all other tangs but there is the occasional exception (very rare). The larger the system the less likely the problems with aggression you will have if housed with multiple tangs. Males are considerably smaller than females. Adult size is from 9 - 10 inches depending on sex of fish.
stop being irresponsible you have a living animal...like i always ask..i could ship you to Australia in 3X3 box...you will eat...live in that 3X3 box...how long before you get sick...or die?