Green algae on my rocks

[Mikkel314]

Hi you fine experts out there.

My tank is a little bit older than one year at the moment.
The tank is doing god (I think), but I am a little bit worried my coralline algae is not progressing as I would like them to do. My rock is mostly green with smaller areas with coralline algae, there is no hair alge.

Do I need to take action or will time bring me what I want?

Water parameters is:
Salinity 1,026
KH 8
ALK 2,85
Ca 430
Mg 1350
Po4 0,00
No2 0,0
No3 0,0
I use Salifert test kits

Br
Mikkel

 

[Brew12]

Hi you fine experts out there.

My tank is a little bit older than one year at the moment.
The tank is doing god (I think), but I am a little bit worried my coralline algae is not progressing as I would like them to do. My rock is mostly green with smaller areas with coralline algae, there is no hair alge.

Do I need to take action or will time bring me what I want?

Water parameters is:
Salinity 1,026
KH 8
ALK 2,85
Ca 430
Mg 1350
Po4 0,00
No2 0,0
No3 0,0
I use Salifert test kits

Br
Mikkel

I'm not sure time will bring you what you want, but I'm not sure there is much you can do about it without risking the rest of your system. It isn't uncommon at all for tanks with high PAR levels to struggle developing coralline. Since you have no algae and very low nutrients is it safe to say you have a fair amount of SPS in your tank and run high PAR levels?

 

[Mikkel314]

I'm not sure time will bring you what you want, but I'm not sure there is much you can do about it without risking the rest of your system. It isn't uncommon at all for tanks with high PAR levels to struggle developing coralline. Since you have no algae and very low nutrients is it safe to say you have a fair amount of SPS in your tank and run high PAR levels?

I belive I have high par levels 4x54w T5 and 4x80w T5 (I don't have actual par mesurements) and a lot of SPS. so do I understand you correctly, because of the high par I will struggle with getting more coralline algae, correct?

 

[Brew12]

I belive I have high par levels 4x54w T5 and 4x80w T5 (I don't have actual par mesurements) and a lot of SPS. so do I understand you correctly, because of the high par I will struggle with getting more coralline algae, correct?

I can only go by what I hear anecdotally, but it seems common that people with very high par and SPS dominant tanks can struggle. The odd thing is that it isn't true for everyone. I've seen speculation that the coralline is just missing (or being bombarded by) a specific spectrum and I've seen people guess that there are some less common strains of coralline that do well under very bright lights.