Printable Aquarium Dosing Log
This sheet is for aquarium keepers who want a simple dosing log for planted tanks. It includes columns for date, tank litres, KNO3 grams, KH2PO4 grams, and the resulting nitrate, phosphate, and potassium ppm from both salts. The rows are set up for repeated entries, with an example line like 2027-02-01, 120 litres, 1 g KNO3, and 0.2 g KH2PO4.

Free printable · PDF
- 2 pages
- US Letter, landscape — choose “Fit to page” for A4
- PDF, 54 KB
Free for personal, family and classroom use.
Enter your tank volume and each salt dose, then use the ppm columns to record or check nutrient levels. Print the two-page letter landscape PDF and keep it with your aquarium notes so each dose and calculation stays in one place.
Good for
- Record weekly fertilizer dosing
- Check nitrate and phosphate additions
- Compare doses across different tank sizes
Tip: Print in landscape and keep a pen nearby for quick dose entries after water changes.
5 files · XLSX, PDF, DOCX
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