Battling algae for months

[Misha]

Hello,
I've been battling this algae for a couple months now and I can't get rid of it... I can really use some help, quitting this awesome hobby has crossed my mind..
It's a very slimy fuzzy looking brown algae/bacteria. I've tried sucking it of, which reduces it a lot but only the top layer, the bottom which is attached to the rocks is not coming of neither with brushing. On the sand bed it's a thick plaque.
After the weekend I'm going to send an ICP test but here are the params I know:
nitrate 2
phosphate 0.03
salinity: 1.025
temp: 25 Celsius

 

[blaxsun]

I see this type every now and then in my sump clinging to my media blocks in small pieces.

 

[Misha]

I see this type every now and then in my sump clinging to my media blocks in small pieces.

Do you have lights in your sump? I don't see it in my sump without lights/refugium

 

[Garf]

Hello,
I've been battling this algae for a couple months now and I can't get rid of it... I can really use some help, quitting this awesome hobby has crossed my mind..
It's a very slimy fuzzy looking brown algae/bacteria. I've tried sucking it of, which reduces it a lot but only the top layer, the bottom which is attached to the rocks is not coming of neither with brushing. On the sand bed it's a thick plaque.
After the weekend I'm going to send an ICP test but here are the params I know:
nitrate 2
phosphate 0.03
salinity: 1.025
temp: 25 Celsius

I’ve generally seen them described as this;

Chrysophytes

The Chrysophyceae, classified within the kingdom Chromista, are mostly unicellular or colonial organisms found in fresh and salt water th...

lifeofplant.blogspot.com

 

[blaxsun]

Do you have lights in your sump? I don't see it in my sump without lights/refugium

Just a small LED on an auto sensor for maintenance.

 

[Misha]

I’ve generally seen them described as this;

Chrysophytes

The Chrysophyceae, classified within the kingdom Chromista, are mostly unicellular or colonial organisms found in fresh and salt water th...

lifeofplant.blogspot.com

Unfortunately not a lot of info on the web about Chrysophytes, do you have any experience with it?

 

[Misha]

Just a small LED on an auto sensor for maintenance.

That means it needs light, maybe a blackout will do some good?

 

[Garf]

Unfortunately not a lot of info on the web about Chrysophytes, do you have any experience with it?

Unfortunately not, sorry.

 

[Misha]

I’ve generally seen them described as this;

Chrysophytes

The Chrysophyceae, classified within the kingdom Chromista, are mostly unicellular or colonial organisms found in fresh and salt water th...

lifeofplant.blogspot.com

Did some research and I'm positive it's Chrysophytes. BRS facebook mentions: low nutrients and silicates in the RODI water to be the cause

 

[Misha]

Retested po4 and no3:
po4 = 0.03 Hanna checker
no3 = 0.2ish salifert
Might be locked up in the algae but started dosing no3 after some reading

 

[sixty_reefer]

Retested po4 and no3:
po4 = 0.03 Hanna checker
no3 = 0.2ish salifert
Might be locked up in the algae but started dosing no3 after some reading

That’s a good move imo