#alkalinity

Alkalinity (also called dKH or KH) is the single most important reef-chemistry parameter to keep stable. Coral skeletons, coralline algae, and most ICP-detectable trace dynamics all hinge on alkalinity sitting in a tight 7.5 to 9.5 dKH band, drifting less than 0.5 dKH per day. Reef Trak logs every alkalinity test, plots the trend, flags drift, and ties each result to your dosing schedule so you can correlate a dose with what your tank actually did.

Articles tagged alkalinity

Reef Chemistry · April 2, 2026

The Best Way to Track Alkalinity, Calcium, and Magnesium in a Reef Tank

Alkalinity, calcium, and magnesium are the three pillars of reef chemistry. Tracking them well is straightforward once you know what to log, how often, and what to do with the record.

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Reef Chemistry · March 4, 2026

Reef Tank Alkalinity: Complete Guide to dKH, meq/L, Testing, and Stability

Alkalinity is the single most important reef parameter to track. It moves daily, drives coral skeletal growth, and is the first thing to drift when something is off. Here is the practical guide for reef keepers.

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