Trouble Getting Alk up in established tank dosing Nitrates

[Myka]

Originally Posted by Craigdillman

The rule is I can’t raise dkh by more than 1.4 per day

Personally, I wouldn't even raise KH by 1.4 dKH in a week, let alone in a day. The longer the KH has been low, the slower you must raise it, or you will run into some very mad/dead corals.


In a situation like this, I wouldn't be adding any doses to raise the KH, I'd be increasing the doser until you're seeing a slow, steady increase, and aim to raise from the 5.3 you tested up to the 8.5 you want to be at over the course of about 2-3 weeks at the quickest. Once you get close to your target, cut the doser back so you stabilize out where you want to be. Keep in mind, as the KH dosing increases, there will be an increase in demand for Ca as well.