Kelp right?

[diabeeteez14]

This red stuff is growing all over the place. I think it is kelp and if so should I remove them or is it good? TIA

 

[zenn]

looks like red bubble algae. I'm no expert though

 

[Devilishturtles]

Bubble algae or Grape Caulerpa...

 

[TheRealFF]

Wow... if it's bubble algae... i hope that piece of LR is easy to remove

 

[neilster1]

I know emerald crabs will eat green bubble algae.. don't have any idea about the red stuff.