Octopus� Ground Probe �Highly recommended for all aquariums to prevent stray voltage from affecting marine animals.

OPEN BOX RETURN- SAVE 20%   The TUNZE® Osmolator 3 nano is a simple and safe device with just one...

Isolation is the Key to Accurate Tests About HYDROS iV PRO Drive Port Accessory To obtain precise pH and conductivity...

This HYDROS Force Port Power Cable is used to connect the Kraken to power a WaveEngine LE, WaveEngine, XD, or...

CoralVue HYDROS Sense Port Accessory   The HYDROS Flow Sensors are easy-to-install and measure the flow rate of water passing...

CoralVue HYDROS Sense Port Accessory   The HYDROS Flow Sensors are easy-to-install and measure the flow rate of water passing...

CoralVue HYDROS Sense Port Accessory   The HYDROS Flow Sensors are easy-to-install and measure the flow rate of water passing...

The Magnetic Optical Sensor replaces our optical sensor with magnet and offers an improved look, feel, and magnetic design that...

CoralVue HYDROS DC Solenoid Valve The HYDROS DC Solenoid Valve is a handy HYDROS Control 2 and Control 4 accessory...

Half U Clips for Rope Leak (10pack)

Please note: Cable will vary from photo, stock photo shown. Hydros Tunze WE Pump Adapter Direct Pump Driver - For...

Please note: Cable will vary from photo, stock photo shown. Hydros Maxspect Gyre 330/350 WE Pump Adapter Direct Pump Driver...

Precision device with fine adjustment for standard CO2 cylinders, thread in keeping with German standard DIN 477 (US version with...

The seneye+ includes the disposable seneye slide, e-mail alerts, automatic online graphing, and personalised advice. Activating your seneye+ is really...

The little new product we promised. It may be little, but it has been in demand for a long time....

PINPOINT" Salinity Calibration Fluid 53.0 mS standardized fluid for calibrating the PINPOINT Salinity Monitor"

Conductivity / Salinity Calibration Solution - 53.0 mS - 1 packet NOTE: Using this solution on a salinity or seawater...

MA957 CO2 Solenoid Diaphragm Valve Includes flow regulator, needle valve, electronic solenoid & bubble counter. Unit comes with dual gauges...

Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode...

TECOnnect WIFI MODULE      Compatible with ALL TK-500, TK-1000, TK-2000 The TECOnnect wifi module is an easy to install...

AQUA Lifter Pump High Pressure (Brushless) - Not a standalone unit.  Requires an Autoaqua unit to run.   Model: LP-1800...

Reef Kinetics Reefbot Replacement Tubes 2 Meters Silicon Tubes (Set of 3)

CoralVue HYDROS Sense Port Accessory   The HYDROS Flow Sensors are easy-to-install and measure the flow rate of water passing...

Introducing the Custom Cradle Pro Magnetic Probe Holder   Holds up to 5 Probes   A magnetically mounted probe holder...

New to the leak detector offerings is the Optical Multi Surface Leak Sensor (LD-3).  This is a weighted sensor that...

This is a ten foot Male/Female extension cable that will enable you to remotely locate DC24 accessories like the PMUP....

CoralVue HYDROS CO2 Solenoid Valve The HYDROS DC CO2 Solenoid Valve is the ideal solution for controlling the CO2 flow...

HYDROS Rope Leak Sensor Extension Extend to your HYDROS Rope Leak Sense Port Accessory   The HYDROS Rope Leak Detection...

The HYDROS WaveEngine APX Link allows you to connect the WaveEngine's 0-10V input port directly to a third-party aquarium controller...

Control any pump via variable speed INPUT. Unlike other controllers that require intricate programming on pumps connected via 0-10V, the...

Optical Level Sensor  (OS-1) With Magnetic Mount This sensor plugs into your FMM and, using reflected infrared light, will signal...

20V AC to 12V DC Power Adapter for use on the AquaController Apex.

Aquabus 30′ Extension Cable This is a thirty foot Male/Female Aquabus cable that is used as an extension cable to...

This is a ten foot Male/Female extension cable for the 1Link. To extend the WAVs

The pH and ORP probes are now double-junction as well so they hold calibration longer and have a longer lifespan...

1LINK – EASY, ONE-CLICK INSTALLATION   The WAV is the first of a line of aquarium products from Neptune Systems...

Feed your fish consistently, and safely, while you are home OR away! A key component of caring for aquatic animals...

Pinpoint ORP Redox 400 Calibration Fluid - 1 packet

Have the Apex take control of your variable speed pumps and do things you never could imagine with a stock...

    SALINITY/CONDUCTIVITY PROBE- LAB GRADE Start Measuring Salinity or Conductivity in your tank.  Get alerts when those values are...

2 Channel light dimming cable for Apex variable speed ports. It has 1 RJ45 connector on one end of the...

NEW OPEN BOX RETURN - Brand new item, plastic has been removed from unit but doesn't appear to have ever...

The ITC Reefculture M-Rack Probe Holder Plate is made from the highest quality CNC-cut glossy black acrylic. Holds up to...

The ITC Reefculture M-Rack Dosing Line Plate is made from the highest quality CNC-cut glossy black acrylic.    Requires 2x...

Dalua Illumagic Pixel & Vitamini 24-Hour Auto Scheduler Dimmer The Dalua Illumagic Pixel & Vitamini 24-Hour Auto Scheduler Dimmer provides...

Hydrps Diaphragm Water Pump The HYDROS Diaphragm Pump is a small 12V Drive Port accessory that uses positive external displacement...