Hair Algae??

[Ndmartin0120]

Is this hair algae? Its growing in my sand bed its only about a 1/4" tall..

 

[Marquis]

Doesn't look like it... Maybe a macro algae?

 

[Dirtydee12]

Have the same thing in my take but no idea what it is.

 

[mr_X]

"Hair algae" is a nick name that covers many species. I would say, yes, it's hair algae. Hair algae, is a macro algae.

 

[austinsdad]

Looks like it could be bryopsis. Bryopsis: A Common Pest in Aquaria: An unsightly, green alga that herbivores dislike to eat. | Suite101.com

bryopsis - Bing Images