Neptune Systems

COR 20 - This pump is identical in physical size to the COR 15 but with the addition of an External power supply can push over 2000gph! All that flow for less than 100w of power and it is nearly...

The DŌS comes standard with 4m of tubing. Many customers have been asking to purchase more tubing. We now have an available accessory — a 16-meter and 4- meter length of the tubing...

The Magnetic Optical Sensor replaces our optical sensor with magnet and offers an improved look, feel, and magnetic design that also lends itself to help prevent water incursion into the sensor...

Start measuring salinity in your tank and get alerts when out of range. Buy this probe if you are: Replacing an old probe. Adding salinity monitoring to your system via a PM2.

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 Apex (Apex(2016), Apex...

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 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...

The PM1 probe module is just what you need if you want to monitor pH or ORP in your tank. And, there is an added bonus, you get an extra temperature port as well as six I/O switch inputs for use on...

Double junction probes place a second vessel inside the main electrolyte with a second internal junction. The means that even when the aquarium water eventually begins to make its way in the first...

Usually used with a return pump, this flow sensor can be placed in line with the flow on any pipe, connected to the FMM, and communicate to your Apex the flow rate of water through that pipe. The...

This package includes: 1x - Apex Dosing Pump 1x - Apex DDR Dosing Reservoir 2x - Apex 4 Meter DOS Tubing A multi-purpose dosing and fluid delivery system of uncompromising quality...

Plug this probe into your FMM and then place it on any surface where you want to detect stray water. Upon contact with water this probe will communicate to your Apex and alerts or other actions...

New to the leak detector offerings is the Optical Multi Surface Leak Sensor (LD-3).  This is a weighted sensor that is an improved sensor and design over our Solid-Surface Leak Sensor (LD-2)...

Connect external switches and I/O Inputs to your Apex When connected to the I/O Port of your Apex, Apex Lite, or PMx module, the Breakout Box gives you an easy way to connect up to six external...

A redesigned display module has been created with a slick new look that matches the color scheme. Orange LED

The DŌS comes standard with 4m of tubing. Many customers have been asking to purchase more tubing. We now have an available accessory — a 16-meter and 4- meter length of the tubing...

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...

Some of the most successful reef aquariums employ the use of a macroalgae-filled growth area or refugium for the purpose of nutrient control. The GRO is a specialized, 20W LED light designed to grow...

The 1LINK module and the EB832 have two DC24 accessory outputs built that act like additional on/off outlets for DC24 devices. There are some Neptune Systems accessories, like our PMUP,...

Maintaining consistent salinity in your aquarium is key to the well being of every organism inside it. And, as busy as we sometimes are, we don’t even realize our parameters are out of whack...