ID please

[jd371]

I've had GHA before but this is not like it, it's a darker green and doesn't move in the current like GHA because it's a lot thicker and not as fine. Not Bryopsis either, I've had that in the tank also and this doen't look at all like it.
Nutrients are high and I'm working on getting them down. Last time a tested NO3 was at 50 ( for 2 months ) and the PO4 was .07 down from .25 back in September. I'm running Phosguard for the PO4 and I'm on the second week of dosing vinegar. I'm thinking of giving Flucanazole a try, although when I used it for the Bryopsis it didn't have much of an effect on this, maybe a bigger dose?

Sorry, but where this is I can only shoot from this angle and have to zoom in.

 

[Flippers4pups]

Have you tried manually removing it?

I would need a better picture of it with white light.

 

[jd371]

I have manually removed what I can but it grows back. It's starting to spread so I want nip in the bud before it gets out of hand. I placed an order for Flucanozole to have on hand in case I need to go that route. In the meantime I'm working on lowering the nutrients.