Dosing Nitrate & Phosphate

[ingchr1]

Sounds like your on the right track. I was in the same boat, low PO4/NO3 and had Dinos (twice).

Used NeoPhos, NeoNitro, filtering, lights out and Vibrant to clear out the Dinos. I'm wondering if I could have gotten away by leaving out the Vibrant. I only used it a couple of times, and no longer. Here's where I discussed it a bit in my build thread: https://www.reef2reef.com/threads/waterbox-marine-aio-40-2-build-by-ingchr1.533076/post-6859455

I've been dosing NeoPhos and NeoNitro as needed. Mostly NeoPhos, NO3 seams to be maintaining around 2PPM on its own.

Since dosing my corals look better as well and coralline algae is taking off.

 

[PicassoDan]

I just got sodium nitrate and sodium phosphate yesterday, so I'll start dosing tonight. Had to refresh my memory on chemistry math: molar masses, etc.
Also got new reagent envelopes for the Hanna 736, so I'll compare results to the 2+ years expired ones.

What do you guys use for nitrate test kits?

 

[PicassoDan]

After some review, typical engineer over-complication, and then simplification, I realized for dosing powdered chemicals like NaNO3 and Na3PO4, it's simplest to just figure out how many grams of each you need to raise the system by 1ppm. Then you can dissolve that in however much water you need and add it to the sump.