Anyone know this algae?

[scline]

It started out small and I thought it looked neat so left it... well a few weeks later I know have this (please see the picture).

I am dosing Vinegar but had high PO4 (0.20). Threw GFO on the system last week and its down to 0.02.



I suspect this came from my refugium that is a mixed bag of algae at the moment (soon to swap it all to chaeto). Plucked a bunch but it breaks apart so easily, hard to get it from the rock

 

[RJinPV]

It looks like dictyota per the link below, but I think I see common green hair algae mixed in with it in your pic. I have no experience with this algae but the link below makes it sound like it can be controlled

https://www.reefcleaners.org/nuisance-algae-id-guide

 

[BestMomEver]

I would’ve guessed bryopsis but I am by know means an expert. If it’s bryo, try some fluconazole.

 

[SeaDweller]

I would’ve guessed bryopsis but I am by know means an expert. If it’s bryo, try some fluconazole.

Def not bryopsis. Bryopsis looks like mini ferns.