Nuisance Algae ID please

[Vincent100]

Hi all
I've got some strange algae growing on a frag of Rasta zoa
I no clue as to what type , I was gonna Scrubs it with a toothbrush
It sort of looks like it's growing in sheets if that makes any sense
I've post all the pics I've took as some might be better than others
Thanks

 

[Tahoe61]

Looks like it could be the beginnings of dictyota algae. I would remove the frag and scrub and remove the unknown from the frag. You can use a q-tip and some hydrogen peroxide applied to only the algae, avoid getting it one the zoanthids. Scrub clean in display water, rinse and repeat in display water and return.

 

[Vincent100]

Thank you Tahoe

 

[XNavyDiver]

Hard to say, most of the pics are too blue, but a few of them almost look like ulva. I had a few frags that grew some ulva leaves (is that the right term?) and I just plucked them off with some tweezers.

 

[FarmerTy]

It could be dictoya or ulva, I'm leaning towards ulva. Either one, get it out of there as both can become a nuisance in the tank if uncontrolled.

You can always use a mild hydrogen peroxide dip, maybe 1/4 hydrogen peroxide to 3/4 tank water after removing physically what you can of the algae and that should kill off the rest of the algae. It'll tick your zoas off just a bit but they'll get over it if healthy.

 

[Vincent100]

I've just taken some more pics under different colour

 

[FarmerTy]

I've just taken some more pics under different colour

Ulva.

 

[XNavyDiver]

I agree with @FarmerTy. Simply plucking the ulva with tweezers worked for me. They never came back.

 

[Vincent100]

Thanks for the help guys