Not a hitchiker or a critter....

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Hi All

I am trying to indentify this for a friend. I believe its just red coraline but its patch on each rock. doesnt move and doesnt look furry. A 2nd opinion would be awesome. ive posted a video of me jabbing it

 

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one without blues

 

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My initial reaction was either slime or turf but it doesnt react? but maybe im missing something

 

[35ppt]

Redacted

 

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Thanks, I thought it was coraline but wanted a second opinion. ive read where people use Peyssonnelia sp. as a name is usually associated with not great things