ReefOS is the complete operating system for your reef tank. Track parameters, score tank health, schedule maintenance, simulate water changes, log events, and connect your Neptune Apex — all in one place.
120 gallon mixed reef
Built by reef keepers, for reef keepers. ReefOS goes far beyond parameter logging — it is the full management layer for your tank.
A real-time composite score weighing parameter ranges, stability, recent events, and maintenance tasks into a single number you can act on.
Log Alk, Calcium, Nitrate, Phosphate, Magnesium, Salinity, and custom parameters. Sparklines and charts surface trends instantly.
Tracks how consistent each parameter is over time. Unstable swings are flagged before they stress your livestock.
Model exactly how a water change will affect your parameter levels before you do it, so you never overshoot.
Schedule recurring maintenance like water changes, filter cleanings, and dosing checks. Get overdue alerts so nothing slips.
Record coral additions, equipment failures, disease outbreaks, and other activities. See how they correlate with parameter changes.
Share your tank with a public profile link. Browse the community to see how other reefers run their systems.
Connect your Apex controller to automatically pull probe readings directly into ReefOS — no manual entry required.
Export all your readings to Excel at any time. Your data is always yours.
Manage as many tanks as you run. Each gets its own dashboard, health score, tasks, and history.