Tankly
A simple, private logbook for your aquarium. Log water tests by tapping the test-tube color, track trends, cycle a new tank and never miss a water change. Offline, no account.
What it does
- 01
Log a test in seconds
Tap the color that matches your tube or strip: pH, ammonia, nitrite, nitrate, temperature, GH, KH and phosphate.
- 02
See what's off, and what to do
Every reading is marked In range, Watch or Act now, with target ranges for freshwater, planted, reef and brackish tanks.
- 03
Spot trends early
Charts for every parameter with your target range and water changes marked, plus average, lowest and weekly rise.
- 04
Cycle a new tank
Follow ammonia, nitrite and nitrate through each stage. Tankly tells you when your tank is cycled.
- 05
Never miss a water change
Repeating tasks and reminders for water changes, tests, filter care, feeding and more, plus a livestock list and journal.
- 06
Private by design
No account, no ads, no tracking. Pro adds unlimited tanks, full history, a photo journal, widgets and CSV export.
Tankly offers general fishkeeping information only. It is not veterinary advice.