Unstable perhaps implies not adding it to offset demand, but it is certainly true that higher alk causes higher alk and calcium demand. Same for higher pH.
while i have ya, ive talked to you before about my methods. im doing AFR during day, and kalk at night to limit the ph drops. i like to stay at close to 8.2 ph at all times. my alk and calc are VERY stable now, never wavering really on my auto dosers, but it higher than it used to be, at around 10dkh now.
But my mag is very wierd and i cant figure it out. It seems to be always dropping, and i have had to increase the amount on my auto doser.
I also dont know which tests to trust.
My salifert has been reading 1290 almost always which i dont trust.
My red sea mag test is reading about 1330 to 1350 with occasional dips.
But each week i am slowly bumping up the milliliters my auto doser is using on my mag because it keeps dipping.
Assuming the red sea is accurate, why would so much mag need to be dosed.... i thought mag was one of the more stable elements that didnt need as much dosing. but do corals really use up that much mag or is my tests just off, or does the high alk level of 10 just require that much more mag to keep up?
