Recheck before correcting and review dosing, salt mix, recent water changes, and measurement error.
Reef aquarium Alkalinity guide
Choose a stable target appropriate to the reef and salt mix, then watch consumption. Track repeated readings and recent care instead of treating one number as a diagnosis.
Review consumption, dosing delivery, water changes, and the relationship with calcium and magnesium.
dKH · Content reviewed 2026-09-02. Verify urgent livestock, dosing, and treatment decisions with qualified sources and product labels.