ReefDiary Guide
Best Aquarium Tracking App for Reef & Freshwater Tanks
ReefDiary is a dedicated aquarium management app for logging parameters, scheduling maintenance, and tracking livestock — built for reef and freshwater hobbyists who want more than a spreadsheet.
An aquarium tracking app records water test results, maintenance tasks, equipment, and livestock in one place so you can spot trends before problems spread. ReefDiary combines parameter charts, reminders, dosing logs, and AI-powered reef intelligence on iOS and web.
How ReefDiary compares
| Feature | ReefDiary | Typical alternative |
|---|---|---|
| Water parameters | pH, salinity, Ca/Alk/Mg, nutrients, trends & alerts | Manual notes or generic spreadsheets |
| Maintenance | Scheduled water changes, tasks, equipment service | Calendar apps without tank context |
| Livestock | Fish, coral, inverts with purchase & health history | Photos in camera roll only |
| Reef intelligence | AI analysis of parameter trends & recommendations | Forum threads without your data |
| Multi-tank | Multiple tanks with per-tank schedules | Separate sheets per tank |
Common questions
Is ReefDiary good for reef tanks?
Yes. ReefDiary supports reef-specific parameters (calcium, alkalinity, magnesium, phosphate, etc.), dosing logs, and AI recommendations tuned for saltwater systems.
Does ReefDiary work for freshwater tanks?
Yes. Tank type settings adjust optimal ranges and guidance for planted, community, and other freshwater setups.
Is there a free version?
ReefDiary offers a free Starter tier with core tracking. Serious Reefer subscription unlocks unlimited tanks, advanced analytics, and exports.