Why aquarium hardness and alkalinity can diverge worksheet

Article: https://fishymag.com/articles/aquarium-hardness-alkalinity-independent
Scheduled publication: 2026-11-09T04:00:00.000Z
Original FishyMag editorial worksheet. Worked cases are illustrative, not records of a real aquarium or treatment instructions.

Original calcium and magnesium quantities and bases: ______________________________

Original alkalinity result and selected method: ______________________________

Other major ions and inorganic-carbon evidence: ______________________________

Temperature, model and charge-balance convention: ______________________________

Hardness calculation and calcium-carbonate equivalent convention: ______________________________

Independent capacity result or model output: ______________________________

Completed same-hardness and same-alkalinity comparisons: ______________________________

Unsupported inference about a real aquarium sample: ______________________________

Reported quantity beside the CaCO3-equivalent unit: ______________________________

Equivalent-mass convention and bounded composition claim: ______________________________