Which Randy's Alk recipe with pH 8.2?

[Randy Holmes-Farley Verified Community Expert]

Don’t laugh…. but I’m using 7 ml of the Red Sea Alk. 2 part solution per day ~ maybe 0.05 dkh / day on the system. System is about 400 gallons total water volume (500 gallon display + 70 gallon sump). 6 months old, Green hair algae problem right now (cyano is starting to disappear over the past week), starting to see green corraline pop up on the back glass.

At that low level, all sorts of minor processes may impact it.

Accumulation of 1 ppm of nitrate per day would account for all of it, but precipitation may as well.

 

[djf91]

At that low level, all sorts of minor processes may impact it.

Accumulation of 1 ppm of nitrate per day would account for all of it, but precipitation may as well.

Well, as a matter of fact, I am dosing nitrate right now to keep it away from 0. And then as mentioned above adding lanthunum chloride to keep phosphates under control (system was started with 300 lbs. of likely phosphate bound dry rock, 100 lbs. live rock).
Currently: Phosphates 0.03, nitrates 3-5 ppm, Alk.: Stable at 7.7, Cal.: stable at 470.

Would you recommend me not to use the sodium hydroxide solution?