Adults(Tangs) range from 15-40cm (6-15 in.) in length and most grow quickly even in aquariums. When considering a tang for an aquarium it is important to consider the size to which these fish can grow. Larger species such as the popular regal tang (of Finding Nemo fame), naso or lipstick tang, clown and sohal tangs can grow to 40cm (15 in.) and require swimming room and hiding places.
Many also suggest adding aggressive tangs to the aquarium last as they are territorial and may fight and possibly kill other fish.
Tangs are also very sensitive to disease in the home aquarium. It is usually necessary to quarantine the animals using copper sulfate or formalin for a period of around 2 weeks.