ReefCtrl connects to your Apex through Apex Fusion, Neptune’s own cloud service. There’s nothing to install — no desktop app, no home server, no port forwarding. You sign in with your Fusion account once and your tank data flows into ReefCtrl from anywhere.
Your Apex needs to be connected to Apex Fusion already (the standard Neptune cloud setup most Apex owners use). If you can see your tank at apexfusion.com or in Neptune’s app, you’re ready.
That’s it. Your parameters, outlets, dosing, and any Trident/Trident NP show up immediately, and the Apex tabs populate just as they would over a local connection.
Monitoring — ReefCtrl reads the latest state your Apex has pushed to Fusion: water parameters, outlet states, power, dosing containers, and Trident reagent levels.
Control — when you toggle an outlet (On / Off / Auto) in ReefCtrl, the command is sent directly to your Apex through Fusion and takes effect right away.
On Lite, tap Pull now in Integrations to refresh whenever you like. Prosyncs automatically in the background and runs alerts so you hear about problems even when the app is closed.
Outlet commands are sent the moment you tap them, so control is fast. Passive monitoring data, however, refreshes on the background sync interval (about every 10 minutes on Pro, or whenever you pull manually on Lite). So if your Apex changes something on its own — a heater cycling, a programmed light change — you’ll see it on the next sync rather than the instant it happens. For tank chemistry this cadence is well within a safe margin.