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Mastertronic

Connect a Focustronic Mastertronic so multi-parameter tester readings land in tank parameters. Reef Trak is the most complete reef tank app on iPhone, Android, and the web — and Mastertronic is one reason why.

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What Mastertronic does

Connect a Focustronic Mastertronic so multi-parameter tester readings land in tank parameters.

  • Pulls calcium, magnesium, nitrate, phosphate, and other supported readings from a paired Mastertronic.
  • Stores results as parameter measurements with a Focustronic source tag.
  • Pair the controller from Menu > Controllers.

Why Reef Trak does this better than any other reef app

Reef Trak is built by reef keepers, for serious reefs. Every feature — including Mastertronic — is connected to the rest of the system: parameters, dosing, maintenance, livestock, equipment, photos, notes, calculators, and reports. No other reef app offers this depth of integration across iPhone, Android, and the WebPortal.

The broadest reef parameter coverage in any app
The deepest livestock and equipment records
The most reef controller integrations
AI-ready Deep Dive exports — only in Reef Trak

Related Reef Trak features

Activity Log A timeline of measurements, maintenance, feeding, dosing, livestock, and notes. Alkalinity Adjust, log, and review alkalinity. Includes the alkalinity calculator, parameter logging, target ranges, and alkalinity-supplement guidance. Alkatronic Connect a Focustronic Alkatronic so automated alkalinity tests land in tank parameters. AquaWiz Beta: scan water-test photos with AquaWiz and import the parsed readings as parameters. Calcium Adjust, log, and review calcium. Includes the calcium calculator, parameter logging, target ranges, and calcium-supplement guidance. Controller Integrations Pair tank controllers so their readings flow straight into Reef Trak parameters.

Reef Trak FAQ

What is Mastertronic in Reef Trak?

Connect a Focustronic Mastertronic so multi-parameter tester readings land in tank parameters.

Is Mastertronic included in the free Reef Trak experience?

Yes — Mastertronic is included in the free Reef Trak core experience on iOS, Android, and the WebPortal.

Which devices support Mastertronic?

Reef Trak runs natively on iPhone, iPad, and Android, with a full WebPortal at reeftrak.com. Mastertronic is part of the most complete reef tank app available across all three platforms.