Reef Intelligence
Aquarium controllers, dosers and reef supplements — one brand.
Nereus builds aquarium controllers and reef dosing gear reefers rely on every day, then backs them with filter media, reagents, reef supplements and food chosen for clarity, consistency and international-quality standards.
- Aquarium controller monitoring with push alerts when parameters drift
- Automated dosing for alkalinity, calcium and magnesium supplements
- Care products that fit the same workflow — test, dose, export, repeat
Devices
Built for reefers, by reefers.
Every Nereus device speaks the same language — your dashboard. Monitor, dose and top off with hardware designed to work together.
The brain of your reef.
Aquarium Controller
An aquarium controller for reef tanks that continuously monitors pH, temperature and a third digital sensor. Streams live data to the Nereus dashboard and pushes alerts the moment parameters drift out of range.
- Live pH, temperature & digital sensor readings
- Real-time charts on the dashboard
- Out-of-range push notifications for pH & temperature
- Add manual test values (Alk, NO₃, PO₄, Mg, Ca…)
Precision dosing, fully automated.
Doser
A dual-head reef doser on the Nereus platform. Set ml per day and frequency (15 min, 30 min, or 1 hour) - each head schedules separately, with manual dosing and calibration.
- Ml/day + frequency - auto-calculated dose size
- Independent schedules per head
- Manual dosing from the Nereus platform
- Per-head calibration, ~±0.5 ml accuracy
Three sensors. Zero worries.
ATO System
Two sump-mounted sensors maintain the perfect water level by automatically triggering the top-off pump. A third sensor watches your reservoir and alerts you before it runs dry.
- Dual sump sensors for redundant level control
- Automatic top-off pump trigger
- Reservoir low-level alert
- Failsafe protection logic
Manual or fully automated dKH.
Alkalinity Tester
Alk Mini for fast manual colorimetric checks, and Alkchemist for fully automated alkalinity testing that updates the Nereus platform directly.
- Alk Mini — fast manual colorimetric checker
- Alkchemist — scheduled automated dKH tests
- Results that belong on the Nereus dashboard
- Pairs with Alkalinity Reagent and controller data
Care products
Reef supplements, media and food for a complete workflow.
Beyond the hardware — reef supplements, filter media, reagents, phosphate control and seaweed chosen to the same standard as our aquarium controller and doser.
Ready to upgrade your reef?
Questions about a device, dosing plan or care product? We are here to help.