Breakout Box Connect external switches and I/O Inputs to your Apex When connected to the I/O Port of your Apex,...

15' Male/Male AquaBus cable.  Used to connect an AquaBus module (PM1, EB8, etc) to another AquaBus Module or Apex base...

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

Please note: CONTROL X3 ONLY - Nothing else is included. Achieve Ultimate Aquarium Control with the HYDROS Control X3 The...

The HI98108 pHep+ pH tester provides high accuracy measurements in a rugged pocket-sized design. This meter features an exposed temperature...

Do you have a Reef Brite LED or Lumi Lite LED fixture you would like to control with your APEX...

Smart Professional ORP controller. User selectable Hi/Low Set Point Visual LED alarm Supplied with 12 VDC adapter 1 power plug...

With Milwaukee's MC Controllers you can monitor and control pH and/or ORP levels.    The Milwaukee Instruments "MC" Controllers have...

Professional pH monitor especially designed for use with aquariums. User selectable Hi/Low Set Point Manual 2 points calibration Visual LED...

The ATI ICP-MS Ultimate Lab Water Analysis is a laboratory water analysis of 50 parameters in a reef tank that...

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

Understanding Lighting with the PARwise PRO The PARwise PRO is an advanced light meter that revolutionizes aquarium lighting management. Its...

CONTROLLER ONLY. Requires a mobile device and power supply (not included) and a Salinity Probe Kit for conductivity monitoring (also...

Calcium is one of the most important elements in a reef aquarium. Reef invertebrates, such as corals, crustaceans, mollusks, and...

Effortless Water Testing The IceCap Magnetic Aquarium Test Kit Mixer is a simple solution for efficiently mixing water test reagents....

Calcium Pro Test Kit Advanced calcium titration test Ca   Red Sea’s Calcium Pro Test Kit is an advanced calcium...

The HI731321 are the replacement glass cuvettes used with the HI7XX Checker HC colorimeters and the HI832XX benchtop photometers. Each...

This HYDROS Force Port Adapter Cable (72 inches long) is designed to directly connect the Kraken to power popular 24V...

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

Never before offered in the aquarium industry the LLS Sensors allow for the measurement of water depth in inches or...

ACCESSORY POWER SUPPLY 110V power supply for our DC24 accessories like the PMUP and Solenoid Valve.  You can use these...

IceCap 4-Probe Magnetic Holder   Holds 4-Probes Magnetically mounts to most surfaces up to 1/2in thick!   A SIMPLE WAY...

FLOW SENSORS FMM - FLUID MONITORING MODULE The FMM (Fluid Monitoring Module) is a module that connects to any Apex...

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

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

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

Includes the Trident NP + 2 Month NP Reagents Trident NP The best selling automated tester ever released has been...

Control and Monitor your Aquarium with ease    Built in WiFi, key parameter monitoring, and reliable equipment control. Regular automated...

The Kraken introduces a new concept in aquarium controllers and provides high-power 24V DC switched outputs and a large heavy-duty...

Upgrade kit will not include magnet mount.  It is meant to be installed where the ato float switch is installed...

Reef Octopus Octo Pulse 4 Flow Pump With WaveEngine LE Controller Max Flow: 4,500gph | 11~32watts | 80 - 500+...

HYDROS Control XS (CONTROLLER ONLY) Control XS is an artificially intelligent aquarium assistant that is focused on Sensors. Don’t let...

The ATI ICP-OES Pro kit is identical to the original ATI ICP-OES test.   The ATI ICP-OES Pro Lab Water Analysis is...

Say Goodbye to Manually Testing for Calcium, Alkalinity, or Magnesium in your Reef!   The Trident is an automated testing...

The Marine pH Checker® HC® Calibration Check Set - HI780-11 provides a simple solution to validating the Marine pH Checker®...

Flow Sensor – 1/4″ with push-fit connectors  (FS-25) Usually used with aquarium accessories like RODI inputs, calcium reactor feed lines...

Flow Sensor – 1/2″  (FS-50) Usually used with aquarium accessories like reactors, carbon/GFO filters, etc., this flow sensor can be...

Red Sea Phosphate Pro - Reagent Refill Kit

PINPOINT Salinity Monitor will accurately and immediately measure the amount of salt in any marine or freshwater system. The reading...

To be used with cuvets (item number HI-731331, not for photometer cuvets)for photometers and turbidity meters. They are notched to...

Mount Controllers and Hide Cords Like a Pro (Controllers sold separately) The CoralVue Aquarium Mini Controller Board is a wall-mountable...

Introducing the Custom Cradle Pro Magnetic Tube Holder   Holds up to 4 Tubes   A magnetically mounted probe holder...

Cuvet cleaning solution (230 mL)

HYDROS Rope Leak Sensor Cable ONLY. Part of set     WARRANTY CoralVue, Inc. and HYDROS hereby guarantee this product...

The PINPOINT CO2 Regulator Kit is now available. This is a high end regulator/solenoid engineered specifically for the aquarium hobby...

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

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

110V electronic solenoid valve for CO2 regulator.   Features: LED on/off light indicator Power cord Specs: Trade Size Threads per...

Lunar LED String – 2 LEDs Use this string of LED in combination with your Lunar Simulation Module When you...

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

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