We all know we should dose to replenish alk and ca from coral consumption.
We often suggest only dosing when necessary.
How much do you think of a drop will be ok between waterchanges and when is it necessary to dose?
Scenario 1. If one has a 1dkh alk drop a week would you dose? Or just do weekly waterchanges?
Scenario 2. alk drops 0.5 every 2 days, does that warrant dosing?
Scenario 3. Daily drop of more than 0.5 needs dosing.