Weird Cartilage looking tubes in tank

[iwnltom]

Hi, my tank is around 2 years old, and these weird things have been growing slowly for a while and I never thought anything of it. Today I decided to remove them and they almost felt and looked like tendon when split. Would love to know what they are, thanks !

 

[Sophie"s mom]

you need @ISpeakForTheSeas

 

[morrisDR]

Is that not just montipora digitata coral?

 

[iwnltom]

Is that not just montipora digitata coral?

Nope

 

[ISpeakForTheSeas]

Hi, my tank is around 2 years old, and these weird things have been growing slowly for a while and I never thought anything of it. Today I decided to remove them and they almost felt and looked like tendon when split. Would love to know what they are, thanks !

you need @ISpeakForTheSeas

My first thought would be a Codium species macroalgae.