That sounds like a good idea and you may actually be able to just do water changes for now instead of dosing. Good luck!I have maintain for 2 days at 9 dkh and I stop the calcium reactor until the KH drop to 7.70 dkh then I will turn on the reactor to see if I can maintain at this level. If still not then I will off line the reactor and instead dosing with 2 parts .
This article may be of some help:
http://www.advancedaquarist.com/2014/7/corals
A quote: "Aquarist most often maintain elevated levels of pH, alkalinity, and calcium to promote coral health. In this study however, elevated conditions of these parameters resulted in a decline of photosynthetic efficiency (Fv/Fm), indicating an overall decrease in coral health. There was also a slight decrease in health as parameter values increased within the recommended ranges. This effect should be considered when dosing in a closed system as corals experienced optimal health within the lower values of the recommended ranges."
Hope this helps.
Thanks for the link.
Cheers,
Ray
For me 9 dkh with calcium 450ppm and pH 8.15 to 8.35 daily swing works very well.
I feed heavily. NO3 is 0.2 ppm up to 0.5ppm. PO4 stays between 0.02 ppm and 0.04ppm per hanah 713 colorimeter with very rare 0.05/.06ppm PO4 readings. I tested daily for years ;now it's once a week since they don't change very much.