Is good good or should I remove it?

[INVRacing]

Here's a pic of what's growing on my return line, should I leave it alone or should I remove it?

Thanks

 

[Kurt_Nelson]

Hard to tell, but it looks like hair algae to me. I'd definitely remove it... unless you like the looks of hair algae.

 

[iDream]

i agree with kurt

 

[INVRacing]

Thanks guys