I have a maintenance company, and on all my clients' tanks I do the following:
Tank salinity - every week before water change
W/C bucket salinity - every week before w/c
Tanks with dosers (med-high demand) - cal and alk every week before w/c, Mg every 2nd week
Tanks without dosers, but lots of coralline - alk every week before w/c, cal every 2nd week
All reef tanks - NO3 and PO4 monthly
TDS in RO tubs - monthly
Check calibration of probes and refractometers - monthly
Fish only tanks - alk, NO3, and PO4 monthly, cal and Mg once every couple months. Yes, I dose fish only tanks. The tanks do better.
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~ Mindy
SPS fanatic.
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