The Neptune Systems A3 Apex Jr is the most affordable entry into the Apex ecosystem — monitoring temperature, pH, water level and leaks right out of the box, with built-in WiFi and Apex Fusion cloud access. Fully expandable: add an EB832 Power Bar for equipment control, or a PM2 module for salinity. A monitoring-first solution that grows into a full controller when you’re ready.
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$740,00 Buy nowThe GHL ProfiLux 4e Starter Set 6E is the accessible entry point into Europe’s most respected aquarium controller platform — delivering lab-grade temperature and pH/ORP monitoring, 1-10V device control, level sensor support and 6 controllable outlets straight out of the box. Runs on ProfiLuxOS, GHL’s own dedicated aquarium operating system, with WiFi, built-in webserver and myGHL cloud access. Expandable with the full GHL ecosystem including KH Director and Doser 2.1.
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$540,00 Buy nowThe CoralVue HYDROS Control X4 Starter Pack is a complete, ready-to-run aquarium controller kit engineered and assembled in the USA. Monitor temperature, pH, ORP and water level right out of the box — then expand through the modular HYDROS ecosystem as your system grows. IP65-rated enclosure, dual-core processor, WiFi + cloud control, and aircraft-grade connectors. Ideal for both beginners and experienced reefers.
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$560,00 Buy nowThe Neptune Systems Apex EL is the accessible entry point into the Apex ecosystem — bringing built-in WiFi, temperature and pH monitoring, and full equipment control via the free Apex Fusion cloud platform. The included EnergyBar 832 provides 8 individually monitored AC outlets plus 1LINK ports for direct DOS and WAV pump integration. Expandable with the full range of Neptune Systems modules.
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$450,00 Buy nowThe Red Sea ReefDose 4 is the 4-head version of Red Sea’s precision reef dosing system — everything that makes the ReefDose 2 exceptional, scaled up to handle calcium, alkalinity, magnesium and a fourth supplement or liquid food simultaneously. Single-drop accuracy of ±0.05 mL per dose, Dynamic Dosing Queue, three speed modes and full ReefBeat app integration. Motor life rated at 10 years.
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$290,00 Buy nowThe Red Sea ReefDose 2 is a 2-head wireless dosing pump built from the ground up for reef aquariums — delivering single-drop accuracy of ±0.05 mL per dose via patent-pending direct-drive planetary gear-motor heads. Three speed modes (Whisper, Regular, Turbo), a Dynamic Dosing Queue that auto-reschedules missed doses, and full integration with the free ReefBeat app. Motor life rated at 10 years.
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$380,00 Buy nowThe Neptune Systems DOS QuietDrive is the next generation of the best-selling DOS dosing pump — rebuilt with EcoTech QuietDrive technology for up to 400% noise reduction, new continuous duty modes for calcium reactor and water change applications, and 1LINK connectivity that eliminates the separate power supply. Two independent pump heads, precision stepper motors with 5,000-hour MTBF, and full Apex Fusion integration. Requires A2 or A3 Series Apex Controller.
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$230,00 Buy nowThe EcoTech Marine Versa is far more than a dosing pump — it’s a precision peristaltic pump capable of two-part dosing, auto top-off, automated water changes and calcium reactor feeding, all from a single unit. A DC stepper motor with planetary gearing delivers accuracy to ±2% across a range of 0.5 µL to 300 mL/min. Fully controlled via the free Mobius app over Bluetooth. Modular and expandable with the optional Base Station.
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$400,00 Buy nowThe BRS 6-Stage Deluxe Plus 200 GPD Water Saver RO/DI System combines the familiar 6-stage Deluxe filtration setup with a dual-membrane water saver configuration — producing purified water twice as fast with roughly half the waste compared to single-membrane systems. Dual color-changing DI resin, pressure gauge, manual flush valve and dual inline TDS meter included. Lifetime warranty.