[BoomerD]

From WetWebMedia:
"Acanthurus coeruleus Bloch & Schneider 1801, the Atlantic Blue Tang; though not as dazzlingly beautiful as the other two "Blue Tangs" (Paracanthurus hepatus & Acanthurus leucosternon) this Caribbean surgeon makes a fine aquarium addition. One of a handful of Acanthurus that are overall yellow as juveniles, the Atlantic Blue Tang stays small enough for modest sized aquariums. "

From MarineDepotLive:

"Maximum Size: the Acanthurus coeruleus grows up to 10 inches.
General Size Specifications: The small size will come to you generally 2 to 3 inches; the medium generally 3 to 4 inches; the large generally 5 to 6 inches.
Minimum Tank Size: The Atlantic Blue Tang prefers a tank of at least 100 gallons with plenty of places to hide & swim.
Diet: The Acanthurus coeruleus 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 Atlantic Blue Tang is a medium maintenance fish.
Behavior: The Atlantic Blue Tang may act peacefully toward other fish.
Hardiness: This is a hardy fish.
Water Conditions: Keep water quality high (SG 1.020 - 1.025, pH 8.1 - 8.4, Temp. 72 - 78° F).
Range: the Caribbean.
General Notes: The Atlantic Blue Tang; though not as dazzlingly beautiful as the other "Blue Tangs" makes a fine aquarium addition. As juveniles their coloration is yellow with a blue ring around the eye. This coloration gives way as an adult to several shades of blue depending on the mood of the fish. Best kept singly and usually well-behaved in larger aquariums, this fish may become biligerent in smaller tanks. If underfed may nip large-polyped stony corals. Some adults may have a yellow tail."