Do I need to cut off the dead part?

[Shazreef]

Hey Reefers,

The lower part of this goniopora is dead. Do I NEED to cut the dead part off for this coral to continue growing or would it naturally grow and get bigger if I leave it as is?

 

[Bucrob]

I personally wouldn't unless it died due to a bacterial infection of some sort. Cutting it will only put unnecessary stress on the coral which could cause the other part to die

 

[Red_Beard]

If it starts growing algae that irritates the coral, then yes. Otherwise let it be.