Every tank, one screen, no spreadsheet
The moment you own a second tank, a single logbook stops working. Two tanks share nothing: not the schedule, not the parameters, not the stocking.
Multi-tank is the point where paper logbooks fail hardest. You end up with two notebooks, or one notebook with alternating pages, and eventually you stop writing in either. Separate digital logs fix the filing problem; a shared overview fixes the attention problem.
Separate everything that should be separate
- Per-tank parameter ranges, so a 7.2 pH is fine in the community tank and wrong in the shell-dweller tank.
- Per-tank reminder schedules and overdue state.
- Per-tank stocking notes, volume, and setup date.
- Per-tank history that stays readable when you are three years in.
All Tanks: the screen that decides your evening
The All Tanks overview answers one question — which tank needs me right now? It ranks tanks by overdue maintenance and out-of-range readings, so a breeding tank with a rising nitrite reading does not get buried behind a stable display tank.
Multi-tank tracking, the All Tanks overview, 7/30/90-day trends and CSV export are unlocked together with a single one-time purchase. No subscription.
Frequently asked
How many tanks can I track?
Is Pro a subscription?
Water Test Log
pH, ammonia, nitrite, nitrate, temperature and any custom reading — attached to the tank it came from, dated, and searchable.
Read →Maintenance Reminders
Water changes, filter cleaning, siphoning, top-offs and dosing — scheduled per tank, with overdue work surfaced on the Today screen.
Read →Feeding Log
One-tap feeding entries per tank, so “did I already feed them?” stops being a guess — and so does overfeeding.
Read →Stop guessing what your tank did last week
Log a test in twenty seconds, get reminded before maintenance is overdue, and keep a history you can actually read back. Free for one tank — no account, no subscription.
Open the App Store link →