What is this?

[islandreef]

Started growing a few weeks ago kept saying i was gona ask just got around to it. Do i need to get it out of there?

 

[Crabs McJones]

Hard to tell from the blue lights, but what color is the algae? Could be a type of Gracilaria

 

[samnaz]

Looks like Dictoya

https://www.google.com/search?q=dic...AUIECgD&biw=1252&bih=568#imgrc=edY8T0L5xU7DLM:

 

[islandreef]

Its actually brown.