Free Reef Tank Parameter Log Sheet
Print this handy log sheet to track your reef tank water parameters. Perfect for keeping by your test kit station.
Tip: Use your browser's "Save as PDF" option when printing for a downloadable file
Reef Tank Parameter Log
Tank Name: ________________________________
Month/Year: ____________
ReefTanker.com
Target Parameter Ranges
420
Calcium (ppm)
Range: 380-450
9.0
Alkalinity (dKH)
Range: 7-11
1350
Magnesium (ppm)
Range: 1250-1400
1.026
Salinity (SG)
Range: 1.024-1.027
8.2
pH
Range: 8.0-8.4
78°F
Temperature
Range: 76-80°F
5
Nitrate (ppm)
Range: 1-10
0.05
Phosphate (ppm)
Range: 0.02-0.1
| Date | Ca ppm | Alk dKH | Mg ppm | SG s.g. | pH | Temp °F | NO₃ ppm | PO₄ ppm | Notes |
|---|---|---|---|---|---|---|---|---|---|
Dosing & Maintenance Log
| Date | Type | Details |
|---|---|---|
Types: WC (water change), Dose, Filter, Equipment, Livestock, Other
Downloaded from ReefTanker.com - Track your parameters digitally at app.reeftanker.com
Testing Tips
Testing Frequency
- Alkalinity: Every 2-3 days (SPS), weekly (other)
- Calcium & Magnesium: Weekly
- Nitrate & Phosphate: Weekly
- Salinity: Daily visual, weekly calibrated
- pH & Temp: Continuous if possible
Best Practices
- Test at the same time each day for consistency
- Keep test kit reagents fresh (replace annually)
- Calibrate refractometers monthly with 35ppt solution
- Look for trends, not just individual readings
- Record any maintenance actions alongside tests
Why Switch to Digital Tracking?
Paper logs work, but digital tracking offers powerful advantages
Trend Charts
See patterns over weeks and months that paper can't show
Reminders
Never forget to test with customizable notifications
ICP Integration
Upload ICP results and auto-parse 60+ elements
Ready for Smarter Tracking?
Start tracking your reef parameters digitally - it's free.