ID please

[dwair]

This came in on my live rock from KP Aquatics about 2 months ago. Honestly thought it would probably die off, but now it’s growing a new piece on the other side. Probably about 4 different pieces of this around the whole rock. No idea what it is.

 

[NowGlazeIT]

leaning towards macro algae but sorry I don’t have a definite answer. Maybe @AlgaeBarn can help if it is a macro

 

[dwair]

Its almost cactus like.

 

[DeniseAndy]

Looks like a calcareous algae like halimeda.

 

[dwair]

Looks like a calcareous algae like halimeda.

I think you are right

 

[vetteguy53081]

it is Halmeda and typical on florida and gulf rock. It is a cryptic species rarely consimed due to morphological convergence within the marine macroalgae.

 

[LiverockRocks]

Halimeda species.
Not a tastey macro for tangs, but a lovely macro to have in your display or fuge.
No worries, a good hitch hiker.

 

[dwair]

Halimeda species.
Not a tastey macro for tangs, but a lovely macro to have in your display or fuge.
No worries, a good hitch hiker.

yea its pretty cool was hoping it wasn't invasive or harmful. Good to know. Just let it be then