Are they integrating the DOC tests yet? I know that was something that Salem has been talking about a lot as something you can't directly affect without water changes and/or ozone.I know a lot of people are successful with the Reef Moonshiner's method that doesn't require water changes.
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+1Water change is my to go tool when i encounter problem in the tank, be it parameter out of whack , coral unhappy etc.
All positive ions I bet too! LolI definitely charge for water. Good money maker for me.