Help! Dosing pump went haywire. Alk went up 2.3 dKH since last night.

Nierika · May 19, 2019

I noticed my montipora was starting to look a little white last night. Did a full test of parameters:
Alk 9.5
CAlcium 425
Mag 1320
Salinity 1.026
Nitrate 30ppm
PH 8.3
Ammonia/Nitrite 0

I did at 16 gallon water change an hour ago (90 gallon tank) and turned all of the electronics back on. I noticed the dosing pump wasn't shutting off, and when I checked it had dosed almost 250ml of BRS Liquid Soda Ash since last night. When I checked the alk it was up to 11.8.

Does anyone have any advice on how to proceed? Do I wait it out and let it drop naturally?

LAReefer4Life · May 19, 2019

Yes, just wait for it to decline naturally. All will be okay

It will come down when you add RODI to replace evaporated water, just test your ALK over the next few days and then conduct a 20%-30% water change if you want additional peace of mind.

MnFish1 · May 19, 2019

You may want to consider decreasing your lights some - as at higher alk - higher lights may also cause issues. You could also wait it out. Another water change won't hurt (depending on where your salt mixes to.