Is it normal

[kamikazereefer]

my reef is one years old
My rock have some sort of small hair algae on it and it seem to stop the coraline growth

I need to clean my vortech pump often they get a lot of algae on it

There is no outbreak but is this algea normal ?? Will it go by it self

I run gfo and gac have a good skimmer 3 time my tank volume

Good light 8 bulb ati p’us 2 reefbrite

I’ll will add some picture

My test salifert read 0 nitrate all the time
Phophate Hanna url 0.01

I do not feed a lot
My fish and when I want to make my nitrate go up this algea go crazy lol !!

Here is some picture for I’d
I think it’s gha let’s see your opinion

I cleaned my pump 2 day ago

 

[Bret Brinkmann]

Looks like the beginning of green hair algae to me. Do you have snails in the tank to eat it? Even if your test show little to no nutrients, it can still grow.