Phosphate and SPS

[hbrochs]

I started running a GFO reactor with rowa media to combat a green hair algae problem. My GHA has almost completely vanished, phosphates are zero, but the corals don't look happy. They are not opening as much, and no growth. I have an ATI light that has led and T5s.

Ca 420
Alk 7.7
Mg 1280

Do your thriving SPS tanks like it a little dirty?

Would you dial back the GFO, or feed more?

Appreciate any thoughts or suggestions.

Thanks,

Howard

 

[kissman]

You are likely starving them. IMO you don't want zero nitrates and zero phosphates. Corals live off if it . You want a trace of them. Try feeding the fish a little more?

 

[hbrochs]

Phosphates

Phosphates

Thanks, I'll try feeding more. Just trying to figure out the balance of feeding the corals and not getting hair algae.