ID this growing in tank

[Chowder]

Not sure how big your tank is but you could try a Tang or someother fish. I had a Naso tang and purple tang that both ate caulerpa. But Tangs need a lot of space to swim and get big. So would not suggest it if your tank is less then 4 feet.

[daddy01]

Yeh I have small tank 30G. I had a tang and had to give it away, brought ich to and had to clean that up.
Jim

[adidas]

use the Tang method :P