Green (Brown) Hair Algae

[kiwis]

I've had green hair algae for most of this year, slowly getting worse.

I started with ROWA Phos to reduce phosphate. No difference
I have a 120L system and been dosing with Vibrant with 3ml weekly for about 9 weeks. No improvements

What else to do?

I've also got a AquaForst Phosphate Minus with about 100g in a reactor.

 

[Dan_P]

I've had green hair algae for most of this year, slowly getting worse.

I started with ROWA Phos to reduce phosphate. No difference
I have a 120L system and been dosing with Vibrant with 3ml weekly for about 9 weeks. No improvements

What else to do?

I've also got a AquaForst Phosphate Minus with about 100g in a reactor.

Adjusting nutrients to control macro algae does not always work. Vibrant may not work in every system. You really need to buy an animal that needs algae for food.

by the way how confident are you about the identification of the growth?

 

[F4TALREEFER]

My regiment to overcome GHA algae recently went something like this.
30% water change 3 days in a row
manual removal
reduced feeding to every other day (Rod's) I'm back to feeding daily small amounts
GFO,Carbon,Purigen mixture in a reactor
added a good sized additon to the clean up crew focusing on diversity
stict 25%-30% wwc
Did a 48 hour lights off
Dialed my whites back about 10-20%-red and green to 0% left my blues and UJV alone (kessil 360x) cahnged photoperiod to 8hours
Turned lights back on following a week long acclimation program from 10% intensity ( idk if it really helped I think it did though) Lights are back to normal setting and on 11hour ramp up ramp down 2 of which are blues at 1% intensity as a soft start up and to simulate a little moonlight in the evening