Nutrients - further algae reduction ideas

[allsite]

I’m running a nano with untraceable phosphate/nitrate levels. I get hair algae and what looks like maybe cyano (blasts off rocks easily, comes back quickly). Corals are doing good, but it’s not as pretty as it could be.

RODI is around 4ppm. I don’t often change water and dose to feed corals.

Question- what else can I test for to keep it running cleaner? Iron? Silicate?

Ps. I’m less interested in changing water more frequently. That’s my fallback plan, but more interested in chemistry tweaks.

 

[Randy Holmes-Farley Verified Community Expert]

Herbivores are a much better way to control algae if you also want corals to thrive.

 

[bobnicaragua]

Snails and hermits.