ReefDiary Guide
Aquarium Parameter Logbook — Track Tests & Trends
A parameter logbook records every water test so you can see trends, correlate dosing, and catch issues early. ReefDiary is built around that workflow.
An aquarium parameter logbook stores test results over time — pH, salinity, ammonia, nitrate, calcium, alkalinity, and more — with charts and target ranges. ReefDiary logs readings per tank, flags out-of-range values, and links dosing entries to parameter changes.
How ReefDiary compares
| Feature | ReefDiary | Typical alternative |
|---|---|---|
| Test logging | Quick entry per parameter with kit notes | Paper notebook |
| Trend charts | Daily, weekly, monthly views per parameter | Manual graphing in spreadsheets |
| Target ranges | Tank-type defaults + custom ranges | Look up ranges each time |
| Dosing correlation | Dosing timeline alongside parameter charts | Separate dose notes |
| Alerts | Notifications when values leave safe ranges | No proactive warnings |
Common questions
Which parameters can I log?
ReefDiary supports pH, salinity, temperature, ammonia, nitrite, nitrate, calcium, alkalinity, magnesium, phosphate, ORP, and many trace elements.
Can I export my logbook?
Serious Reefer subscribers can export parameter history and reports for sharing with clubs or service providers.
Does it work offline?
The mobile app stores data locally and syncs when you are back online.