Recurring tasks
Weekly water change, biweekly skimmer clean, monthly media swap. Set once, let it run.
Maintenance reminders
Aquarium maintenance reminder app, done right.
Water changes, skimmer cleaning, media swap, dosing, ATO checks — recurring schedules, smart push reminders and a full history of what was done.
Aquarium maintenance cannot rely on memory.
Most marine aquarium problems start with skipped maintenance: skimmer clogged for a month, saturated media, missed ATO check, water change pushed back three weeks. Each one alone is small. Together they add up to nitrate at 25, phosphate at 0.3 and RTN on SPS.
ReefFlow is the maintenance reminder app that understands the reef routine. Add each task with its frequency (weekly, biweekly, monthly, custom), get reminders before the deadline and mark as done when complete. The app records the date and keeps the history — when was the last media swap? When was the skimmer last cleaned? It is all there.
Because maintenance and parameters are linked, ReefFlow cross-references them: a logged water change shows up on the parameter chart so you see its impact. Dose adjusted → result on the next test.
Who it is for
- People who skip water changes for weeks
- Reefers who never remember when they last swapped media
- Travelers who need a checklist for whoever covers the tank
- Anyone who wants recurring routines without rescheduling each time
- Multi-tank keepers
- Reefers who want a record of what was done
Push reminders
Notifications before the deadline. You never miss a water change again.
Full history
Last water change: Apr 12. Last skimmer clean: Mar 28. Last media swap: Feb 15. All logged.
Multi-tank
Each tank has its own routine. No mixing schedules.
Maintenance cost
Log costs (salt, media, dosing, equipment). The app totals by month.
Linked to parameters
A logged water change shows up on the parameter chart — see the impact directly.
Maintenance on schedule, tank in equilibrium.
Free for iOS and Android. Never skip a water change.
FAQ — maintenance reminders
Can I create custom reminders?
Yes. Any task, any frequency (weekly, biweekly, monthly, yearly, or custom interval in days).
Does the app send push notifications?
Yes. Push before the deadline. Lead time is configurable (same day, 1 day before, etc).
What if I switch phones?
Data lives in your account and syncs to the new device when you sign in.
Can I see everything done in the last month?
Yes. History view lists all completed maintenance, sorted by date.
Can I share the schedule with whoever covers the tank when I travel?
Shared aquariums is on the roadmap. For now, you can export a manual checklist.
Does it cost anything?
Reminders and maintenance history are in the free plan (1 aquarium, with ads). A $1.99 plan removes ads. Higher tiers unlock multiple aquariums.