Nuisance algae in refugium

[Cobystolz]

I have a bunch of some sort of algae in my refugium. It keeps smothering my chaeto. Any ideas on why it is it how to control it? My nitrates are at zero. And I run the light for about 18 hours a day

 

[Big G]

How long has the refugium been up and running? What kind of light are your using?

 

[russell13]

How much hair is in the display?

 

[Cobystolz]

How long has the refugium been up and running? What kind of light are your using?

The refugium has been up and running since I setup the tank a few months ago. I’m using a grow light from amazon that I’m using in my other tank and it has no algae problems. Or at least barely any.

 

[Cobystolz]

How much hair is in the display?

There is none in the display. There is a thin film that resembles hair algae but it’s a little different because it’s only a quarter inch long and brownish. It’s almost like a hairy slime but it’s going away

 

[KrisReef]

Your lights are on too long @18 hours. Where are your phosphates?

How many fish? Coral?

 

[Cobystolz]

How long has the refugium been up and running? What kind of light are your using?

The refugium has been up and running since I setup the tank a few months ago. I’m using a grow light from amazon that I’m using in my other tank and it has no algae problems. Or at least barely any.

Your lights are on too long @18 hours. Where are your phosphates?

How many fish? Coral?

Ok I’ll turn the timer down to maybe twelve hours? And there are 18 fish. Two biggish tangs, a sailfin and a blue hippo tang. There’s a decent amount of coral. I’m not really sure what my phosphates are at because I don’t have a test for it. Here’s a picture of the tank to see how much coral there is.