Coloured aquarium water: check what the photometer zero used worksheet

Article: https://fishymag.com/articles/aquarium-water-colour-photometer-sample-blank
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.

Aquarium and sample identity: ______________________________

Instrument or laboratory method revision: ______________________________

Original reading including flags: ______________________________

Chemical basis and unit: ______________________________

Sample preparation or blank identity recorded: ______________________________

Quality-control evidence: ______________________________

Supported finding and calculation: ______________________________

Unresolved question and source: ______________________________