Algae ID

[SunSill]

I understand that in new tank this is normal, but couldn't identify this algae. Want to read about it. Some kind of green hair algae?
From hardscape i can remove it with toothbrush, from sand - impossible. Just doing weekly water changes + microbacter7 after water change.
Parameters:
NO2 0
NO3 3
PO4 0.25 ( Add 2 teaspoons GFO in bag) but in 1 week didn't saw any changes.)
Salinity 1.025
KH 7.3

Thanks

 

[Lavey29]

Looks like normal GHA so lots of manual removal and get a diverse cleaner crew including turbos and tuxedo urchins. Get nutrients numbers in proper ranges.

 

[SunSill]

Thanks.
Trochus histrio and clibanarius tricolor is interesting in GHA or not rly? have each of them