View Full Version : Newbie: Algae ID?

11/17/2016, 04:48 PM
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?

11/17/2016, 07:44 PM
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?


11/17/2016, 08:58 PM
Yes it's Ulva algae

Michael Hoaster
11/18/2016, 04:33 PM
Good! Pods, snails, tangs all love the stuff.

11/26/2016, 10:13 PM
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.