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Neptune Systems - Automatic Top-Off Kit (V2) is available for pre-order – please confirm stock before ordering!
The Neptune Systems Automatic Top-Off Kit (V2) is the intelligent solution for maintaining stable water levels in your reef or marine aquarium. Designed to integrate seamlessly with your Apex system, this ATO kit provides precision top-off control using optical sensors and the FMM (Fluid Monitoring Module) for advanced reliability and safety.
Unlike conventional ATO systems, the Neptune ATO (V2) includes dual solid-state optical sensors for redundant level detection, preventing overfills and dry-run situations. It also features a PMUP (Practical Multi-Purpose Utility Pump) that delivers quiet, consistent water transfer from your reservoir to your tank.
Fully programmable through Apex Fusion, the ATO system allows for custom top-off schedules, automated safeguards, and real-time alerts—ensuring your salinity and water chemistry stay balanced without manual intervention.
Key Features:
Integrated dual optical sensors for accurate water level monitoring and redundancy
Includes PMUP utility pump for efficient water transfer
Powered by the Neptune FMM (Fluid Monitoring Module) for Apex-based control
Fully programmable with Apex Fusion for automation, alarms, and scheduling
Prevents overfilling, dry runs, and salinity fluctuations
Compact, plug-and-play setup with secure mounting options
Ideal for reef tanks, nano tanks, and sumps requiring consistent top-off
The Neptune Systems Automatic Top-Off Kit (V2) provides dependable water level management—protecting your aquarium's stability while saving you time and effort.
