Tanksmith

Tanksmith is a private, local-first logbook for reef aquarium keepers. Keep your tank records on your device: no account, no cloud sync, no ads, no subscription, and no analytics. TRACK THE DETAILS THAT MATTER • Add display, frag, or quarantine tanks • Log alkalinity, calcium, magnesium, nitrate, phosphate, salinity, temperature, and pH • See your latest readings against the target bands for your tank • Keep livestock records with species and placement notes • Track equipment and service intervals so overdue maintenance is clear • Switch between gallons/°F and liters/°C DOSING AND REPORTS Tanksmith Pro analyzes recent alkalinity, calcium, and magnesium readings to estimate daily consumption. Generate a clean Tank Report PDF with tank details, recent readings, livestock, and equipment for your own records or to share when asking a community for help. START FREE The free app includes one tank, 40 parameter readings, and three livestock entries per tank. ONE-TIME PRO UNLOCK Tanksmith Pro is a one-time purchase. It unlocks unlimited tanks, readings, and livestock, plus dosing analysis and Tank Report PDFs. No subscription. YOUR RECORDS STAY YOURS Tanksmith stores its records locally on your device. It does not collect, transmit, or share your aquarium records. Google Play handles purchases securely through its billing service.