Do a 10% change every 2-3 weeks with supplemented water (using IO and is low in Mg and Ca right from the pail), and rely on a Ca reactor in-between.
Have a PH monitor and the probe in the Ca reactor effluent so easy to give a quick check every couple of days to see how it's running. If it's ~6.7 I don't even look at the bubble count but might look at the drip rate to get a idea. Every week or two I'll record the PH, reactor rates, Ca, Alk and less frequently Mg and NO3.
|