Marine Plants appeared growing crazy

[Oliver94]

Hello!
I hope you are all having a fantastic sunday!
3 day ago I found a plant growing on one of my live rock,and it is growing like crazy! in 3 days its size tippled..

Any idea? if it is safe or should I remove it??
I searched for some identification but didn't find my plant:
This is a picture of it :


image gratuite


Thank you in advanced

 

[Oliver94]

tripled*

 

[reef lover]

looks like calupera racemosa/grapeweed and it can get invasive, id remove it before it got out of control.

 

[Oliver94]

Deal! thank you I will eliminate it from my DT
Thanks