Well is it sulfuric or sulphuric acid? 
I love the Clown, Balistoides conspicillum, but they have a rather nasty habit of not loving anyone else. Growing to a foot and one half and an agile swimmer, woe unto their tankmates including fish, coral and other edible invertebrates. A 120, I mean 450 liter (or is it litre)
tank will contain one. And I do mean one. The main reason they are not overly popular is their hostile behavior to anything else in the tank. When small they can be kept and are usually peaceful. When they grow and reach their full glory, watch out!.
I'd be more inclined to try our RC banner fish, a Clown Tang, Acanthurus lineatus. While not as striking, it is slightly smaller and generally fights with others of its own genus. It is reef safe and exists mainly on a vegetarian diet. It is somewhat cramped in a 120 but should be Ok if you limit the number of fish in your tank.
I love the Clown, Balistoides conspicillum, but they have a rather nasty habit of not loving anyone else. Growing to a foot and one half and an agile swimmer, woe unto their tankmates including fish, coral and other edible invertebrates. A 120, I mean 450 liter (or is it litre)
I'd be more inclined to try our RC banner fish, a Clown Tang, Acanthurus lineatus. While not as striking, it is slightly smaller and generally fights with others of its own genus. It is reef safe and exists mainly on a vegetarian diet. It is somewhat cramped in a 120 but should be Ok if you limit the number of fish in your tank.