What is growing?

[POLARBEAR0871]

What is growing from my rock I can't figure it out any one know what it is?








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[BigRedsReefs10]

Colonial hydroids or filament algae would be my guess. No need to create another thread though.

 

[POLARBEAR0871]

My LFS said it was fire coral due to it coming out of the rock like how it is could it be fire coral


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[bribo12]

It's not fire coral. It could also just be a funky sponge. I'm betting its 100% harmless


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[POLARBEAR0871]

Awesome thanks for the help


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