Aquarium Tracker: Tank Log

No account. Works offline. The water test log is free. Keep every tank healthy with a fast water test log, colour-coded safe ranges, trend charts and maintenance reminders, for freshwater, planted, brackish and reef aquariums. YOUR TANKS IN ONE LOG • Track several tanks: community, planted, cichlid or reef. • Status badges show at a glance whether readings are in range, need watching or need attention. • Add livestock and notes to each tank. FAST TEST LOGGING • Large keypad made for wet hands next to the tank. • Log pH, ammonia, nitrite, nitrate, temperature, KH, GH, salinity, calcium, magnesium and phosphate; pick the ones in your test kit. • Each reading is checked against its safe range before you save. CHARTS AND CALCULATORS • Parameter charts with shaded target bands help you catch drift early. • Free ammonia calculator (Emerson et al. 1975 model) from pH and temperature. • Water change dilution, tank volume and displacement calculators. MAINTENANCE REMINDERS • Recurring tasks per tank: water change, filter rinse, glass cleaning, top-off. • Local notifications remind you when a task is due. FREE AND PRO Free: the test log, safe-range feedback, reminders, calculators and recent charts. Pro adds unlimited tanks, all-time charts, PDF and CSV reports, custom safe ranges and no ads. Google Play shows current prices and any eligible trial before purchase. A rewarded ad can unlock full chart history for 24 hours. Safe ranges are general guidance, not veterinary advice; confirm readings with a reliable test kit. Support: halimbox026@gmail.com