ReefCtrl — Smart Reef Tank App with Neptune Apex Integration

Hey everyone! Wanted to share a project I've been working on that might interest the reef keeping community here.

ReefCtrl is an iOS app (web app too) for reef tank management — think of it as a smart dashboard for your saltwater aquarium. It connects to your Neptune Apex controller via a lightweight desktop bridge (similar concept to how many HA integrations work) and gives you:

  • Live parameter monitoring — Temp, pH, Salinity, ORP from your Apex probes
  • Outlet control — Toggle outlets ON/OFF/AUTO from your phone
  • AI reef assistant — Ask questions about your water chemistry, get dosing advice, generate Apex programming code in plain English
  • Parameter history — Charts and trends for all your water parameters
  • ICP analysis — Upload ICP test reports and get AI insights
  • Dosing tracker, livestock registry, equipment maintenance reminders
  • Push alerts when params drift out of range

It's built on a Next.js web app with a Capacitor iOS wrapper, so the web version works on any browser too.

I know a lot of reefers here use Home Assistant to monitor their tanks — I'd love to eventually build a HA integration or at least explore how ReefCtrl data could feed into HA dashboards. Anyone here running Apex + HA would be great to connect with.

Free 30-day trial, no credit card needed.

https://www.reefctrl.com | iOS: ‎ReefCtrl App - App Store

Happy to answer any questions!