Macro identification

[cnjcpb]

Please help me ID this macro algae kelp. Who knows what the name of this. Tia

 

[Subsea]

If it came from the Caribbean then it’s likely one of three Halymenia species that have this characteristic: It's gelatinous, smooth and delicate.

https://www.marineplantbook.com/marinebookdragonsbreath.htm
https://www.marineplantbook.com/marinebookhalyfloridana.htm

https://www.marineplantbook.com/marinebookhalyfloresia.htm

 

[cnjcpb]

If it came from the Caribbean then it’s likely one of three Halymenia species that have this characteristic: It's gelatinous, smooth and delicate.

https://www.marineplantbook.com/marinebookdragonsbreath.htm
https://www.marineplantbook.com/marinebookhalyfloridana.htm

https://www.marineplantbook.com/marinebookhalyfloresia.htm

It’s definitely smooth, but it’s very rigid/hard.

 

[Subsea]

It’s definitely smooth, but it’s very rigid/hard.

“The genus Rhodophyta is the largest and most diverse group of tropical and temperate marine algae with more than 2,000 species found worldwide. Their dominant pigment is phycoerythrin, which gives off rich shades of red, orange and blue. Species of red macro algae are some of the most varied and striking of all marine algae and are highly sought after as aquarium specimens. Identification can be difficult with some species, such as Gracilaria, while some collected specimens are not even documented at all.“

Red macro has a complicated life cycle.