Need a ID in this. What is this?

[lordofsmiles]

Some stuff just growing out of my colt coral rock.

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[lordofsmiles]

The white stuff

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[Mebbid]

Is it calcified?

 

[lordofsmiles]

No it is squishy

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[lordofsmiles]

Just like the colt coral

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[Mebbid]

I haven't got the slightest clue tbh.

 

[lordofsmiles]

Appreciate the honesty, thank you

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