Neptune Systems

EXPIRED 8/25 The Crossover Diet from Neptune Systems is a new type of food that was designed specifically for coral reef tanks and specifically for automatic feeding systems. Working closely with...

UNUSED CUSTOMER RETURN Plug this probe into your FMM and then place it underneath your carpet near your aquarium. Upon contact with water this probe will communicate to your Apex and...

UNUSED CUSTOMER RETURN FMM – FLUID MONITORING MODULE IT DOES SO MUCH! This is just the module itself without and sensors. The FMM (Fluid Monitoring Module) is a module that connects to any...

OEM 100W power supply for the COR-20 Return Pump

Neptune Systems single-use pH calibration packets make calibrating your pH probe simple and fast. Just tear open the top, and a stick your probe into the solution when performing the calibration...

Probably the most popular sized level sensor this is the ideal sensor for your average containers used in and around aquarium.  This will be the ideal sensor for measuring the return pump...

If you have simply lost, broken, or want a spare, we carry a wide range of Neptune Systems replacement parts. Compatible with 1Link Module, COR-15 Return Pump, and COR-20 Return Pump...

Apex LED Light Dimming Cable – 2 Channel Use this cable to connect two channels of 0-10V dimmable LED lights to your Apex System or Advanced LED Dimming Module – VDM Use this cable to...

This three foot cable connects to the variable outputs built into the Apex, Apex Classic, and the VDM which has two DIN5 connectors.  This enables speed control of up to two TunzeTM Stream...

Dueto the nature of the chemicals used in the reagents, all orders that include Trident NP reagents must ship ground only.   These NP Reagents CANNOT ship outside the contiguous 48 US...

The 23″ sensor is a bit larger version of the 15″ sensor and can be utilized in similar applications to the 15″ but for larger sized-aquariums.   A great application to...

This is a power supply for the Neptune Systems FMM, DOS, ATK and Trident.

The largest of the LLS sensors is the 35″ sensor.  This sensor is to be used for large reservoirs that are often utilized for saltwater reservoirs for manual and automatic water changes...

The 4″ LLS is the smallest of the four sensor offerings.  It is the perfect fit for small reservoirs for small sumps, ATO reservoirs and additive containers.  This can be a great...

Neptune Systems single-use pH calibration packets make calibrating your pH probe simple and fast. Just tear open the top, and a stick your probe into the solution when performing the calibration...

Neptune Systems A3 Apex Jr: Essential Aquarium Monitoring & Protection The A3 Apex Jr is the perfect entry point for hobbyists looking to safeguard their aquarium without the...

The Neptune Systems Apex Jr. with Avid Aqua Insight Pro Display is the ultimate entry-level monitoring and control solution for the modern reef keeper. This bundle combines the proven...

A3 Apex Pro Base Unit Maybe your original base unit was damaged, or you’re upgrading an older setup to the A3 platform. Either way, this A3 Apex Pro Base Unit is exactly what you need. Plug...

Key New Features in our A3 Series: The A3 Pro will include all new, industry-first, Liquid Level Sensor (LLS) which will have the ability to measure and monitor the depth of water and a new optical...

Includes Insight Pro Display Key New Features in our A3 Series: The A3 Pro will include all new, industry-first, Liquid Level Sensor (LLS) which will have the ability to measure and monitor the...