What is this? Should i worry?

[gibes]

Hi there reef lovers

im quite new to this hobby
I notice something else growing on my rocks, after about 11 months keeping my reef tank.
What is this thing? Is it an algae which i need to get rid off?
Many thanks for your reply

 

[CanuckReefer]

A young Halimeda? If so it's beneficial....

 

[gibes]

Ya? Ok thanks will look into it later!

 

[stanlalee]

What he said. Calcifying halimeda algae.

 

[gibes]

What he said. Calcifying halimeda algae.

Great thanks!