What are things to look for if you find that Alk suddenly stops depleting at the rate it was going at for a while?
In the last two weeks my Alk stopped depleting. I would dial back the doser but I ended up taking it all the way offline about 5 days ago and even with no dosing the Alk is only dropping about 5ppm per day (it got as high as 200ppm or 11dKH, whereas normally I target it around 140ppm, or about 8.0dKH).
Calcium is still being dosed and sits around 370.
Magnesium sits around 1450 currently.
I didn't think to test tank pH last night but it occurs to me now maybe I should. Seems to me something is up. I'm not sure what to look for here. Any thoughts?
FWIW nitrate is unreadable on the test kits I have, and phosphate tests out around 15-30 ppb on the Hanna handheld (so around 0.015 - 0.03 ppm). I don't know if that's a high value or not. Honestly I would have expected it to be zero as I run zeovit but I'm starting to understand that I actually understand next to nothing, these days
