AquaLog

AquaLog helps freshwater aquarium keepers record and review water test readings on their Android device.

Create tanks, then track temperature, NH3 ammonia, NO2 nitrite, NO3 nitrate, pH, KH, GH, water changes, notes, and test dates for each tank. Tank details and saved tests can be edited if readings are mistyped. The dashboard shows your tanks and latest reading with a simple beginner-friendly status label. History keeps your saved tests newest first, can filter by tank, and includes trend charts with point details for reviewing changes over time. Optional tank photo timelines help you keep a local visual record. CSV export and import help you keep a portable backup. Settings use focused option tiles to create and manage tank-specific notifications, apply freshwater target presets, review help and privacy basics, and manage local data cleanup. Each tank keeps one active notification schedule at a time