Newbie: Algae ID?

[laguest]

New 75 gallon tank, only up for 4 weeks
Nitrates 15
Phosphates 0

This algae started to pop up a week ago, starts as a little green dot, then expands to look like a potato chip.

Any ideas?
Good, bad?
Thanks

 

[laguest]

I set the pic to my LFS, they came back and said it was ulva algae
Anyone have any thoughts on that type of algae?

Thanks

 

[mzkrista]

Yes it's Ulva algae

 

[Michael Hoaster]

Good! Pods, snails, tangs all love the stuff.

 

[jraker]

Yes, ulva. If you have herbivores that will naturally feed on it and control it, great. If you don't have anything to eat it and you don't want it to grow a lot, then not so great. Ulva is a fast grower.