Algae or Anemone

[Alfredo77]

Hello,

I am a new hobbyist and while cycling a tank with live rock I have see several tiny clusters of green filaments on the glass of my aquarium like the one in the image. Just want
to make sure this algae and not some anemone pest. When I touch it it won't retract. It looks greener in real life than in the pic. Thank you for any help you can provide.

 

[KJ]

Welcome to R2R!!! Look like alge.

 

[Jay Hemdal Verified Community Expert]

Welcome to Reef2Reef!

That doesn't look like an anemone, probably a thallose green algae, perhaps Bryopsis.

Jay

 

[Alfredo77]

Thank you both!