Are these hydroids?

Goaway

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Yes they are. I just can't tell if they are digitate hydroid or a different species. They look to be on mass spread.

EDIT: Colonial hydroids. Still looks like they are mass spreading. Pluck them out with tweezers if they are rapidly spreading.
 
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SaltwaterandLime

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Yes they are. I just can't tell if they are digitate hydroid or a different species. They look to be on mass spread.

EDIT: Colonial hydroids. Still looks like they are mass spreading. Pluck them out with tweezers if they are rapidly spreading.

They are literally everywhere
 

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