Fish keeping,
kept simple.
Tank Care Buddy helps you track water changes, log test results, browse fish species, and stay on top of every tank — without the spreadsheet.
Features
Everything your tanks need, in one place.
Built for real fish keepers — from first-timers to serious hobbyists — Tank Care Buddy gives you calm, organized control over your tanks.
Track your tanks
Add as many tanks as you have. Set the name, size, and type — freshwater, planted, shrimp, or goldfish.
Log water changes
Track every water change with gallons, dosing calculations, and notes. Dosing auto-calculates so you don't have to.
Water test history
Log ammonia, nitrite, nitrate, pH, and more. The app color-codes every reading so problem levels stand out instantly.
Browse fish species
73+ species with care profiles — temperature, pH, tank size, compatibility, and sourced references for each one.
Maintenance reminders
Set water change and test reminders. Snooze, skip, or jump straight to the logging form — the reminder resets automatically when you log.
Full history log
Every water change, test, fish addition, and edit is timestamped and saved. Filter by type and expand any entry to see the full details.
Who it's for
Built for fish people at every level.
Whether you just brought home your first betta or you're managing multiple planted setups, Tank Care Buddy keeps things organized without getting in your way.
New fish keepers
The species browser, care guides, and reminders help you avoid the most common beginner mistakes — without needing to Google everything.
Planted tank hobbyists
Track fertilizer dosing alongside water changes, keep detailed test logs, and monitor parameters over time.
Anyone who wants to stay organized
If you've ever forgotten when you last did a water change or what your last nitrate reading was, this app is for you.