Water test history
Record temperature, pH, ammonia, nitrite, nitrate, hardness, phosphate, and salinity. View recent values and charts.
Aquarium care for iPhone and iPad
Tankive records water tests, care tasks, livestock, equipment, photos, and changes for freshwater, planted, shrimp, saltwater, and reef aquariums.

Local firstRecords stay available without a network connection
iCloud sharingInvite a caretaker with read-only or edit access
No Tankive accountNo ads, tracking, or developer analytics
Designed for everyday care
Tap into every activity, edit care schedules and livestock, inspect water trends in light or dark mode, and undo accidental task completions.


Aquarium log and tracker
Record temperature, pH, ammonia, nitrite, nitrate, hardness, phosphate, and salinity. View recent values and charts.
Plan feeding, water changes, tests, fertilizer, and filter care. Edit the schedule, confirm early completions, and undo mistakes.
Keep current and past livestock, plant records, additions, moves, observations, and breeding notes with each aquarium.
Record filters, heaters, lights, maintenance intervals, replacement dates, aquarium setup details, and optional expenses.
Keep progress photos, compare dates, create a help summary, and export a polished PDF report, CSV history, or full JSON archive.
Use Apple iCloud sharing to invite a partner or caretaker. Invited caretakers do not need a Tankive Pro subscription.
Optional subscription
Pro includes more than one aquarium, owner sharing controls, change comparison, caretaker plans, and all calculators.
Aquarium app questions
Yes. Routine records are saved locally first. iCloud sync and sharing need an internet connection and an available iCloud account.
No. Tankive records data and shows factual ranges and trends. It does not identify species from photos or replace advice from an aquatic veterinarian or qualified aquarium professional.
No. A person invited to a shared aquarium can use the relevant shared care features without a subscription. The aquarium owner needs Tankive Pro to create and manage the share.
Records are stored on the device. If iCloud is available, synced and shared records are stored in the user's Apple iCloud account.
Tankive for iPhone and iPad