What is this algae growing in my refugium?

[ASIN28]

Hey all,
Recently just started a refugium and just saw this nasty looks black string algae growing inside of it. I’m new to refugium and just had a few questions:
Does the macro algae look normal?
Is it normal for the refugium to turn this green/brown color?
What is this algae growing in the sump?
Thank you

 

[JGT]

Hey all,
Recently just started a refugium and just saw this nasty looks black string algae growing inside of it. I’m new to refugium and just had a few questions:
Does the macro algae look normal?
Is it normal for the refugium to turn this green/brown color?
What is this algae growing in the sump?
Thank you

Looks like some hair algae. Not uncommon. You’ve now got a fudge and an algae scrubber all in one.

 

[splitting_lanes]

Agreed, looks normal to me, even a little nicer than mine.