Blue tangs have no threats.
The Blue Tang changes colors as it matures.
They might but they might not because they might think that blue tangs are small.
butterfly preadortars
A Pacific blue tang, commonly called a Dory fish from the Disney move "Finding Nemo," can typically be kept with a Hawaiian yellow tang. Yellow tangs can be aggressive towards other tangs with similar round body shapes. Since blue tangs have an elongated body, yellow tangs do not consider them a threat. Some tangs require a large aquarium; yellow tangs can grow to over 7 inches in length while blue tangs can grow up to 12 inches long. Juvenile blue tangs can be kept in smaller tanks up to 75 gallons but as they grow and mature they should be moved into larger aquariums.
While it is possible for blue tangs to be eaten by humans, they are not commonly consumed because they contain toxins that can make them dangerous to eat. Furthermore, blue tangs are not typically targeted for consumption due to their popularity in the aquarium trade and their importance in maintaining reef ecosystems.
as long as they want
as long as they want
Regal or commonly called blue tang can grow up to a foot long. At this time we do not have the ability to breed dwarf blue tangs.
so thay can camflag
No, they are common fish.
Yes, Blue Tangs (Paracanthurus hepatus), and all tangs, are exclusively marine(saltwater) fish, and will die in Freshwater within an hour.