What sort of algae is this?

[mrhasan]

Well I believe this was introduced in my tank through some frags and is now out competing my chaeto. I also have a remora skimmer 24/7 but produce very dark skimmate only like half the cup over a week.

Its mainly growing in patches on my substrate and some noticeable patches at the back of the tank. Nothing I would call an algae breakout but well, its there!

I was thinking of using algae x to get ride of it.

P.S. My nutrients are, I would say, under control and has been undetectable by API; before and after this algae.



Advice please