What is this? Macroalgea? Algea? Pest?

[olavvk]

Hi, anyone knows what this red part is?

 

[twentyleagues]

Its hard to tell macro of some sort. What is worrying is all the aptasia around it.

 

[olavvk]

Its hard to tell macro of some sort. What is worrying is all the aptasia around it.

Yep i know…, strugling with aiptasia for long already and eliminate some every week with aiptasia X and last week bought some pepper mint shrimps lets see ..

 

[twentyleagues]

I dont think its red grape algae, which would be "good"/desirable. It may be red bubble algae, technically undesirable but some people like bubble algae. Either way, need a more clear close up. There are a few red algae's that look like that....sort of. I am leaning towards bubble algae.