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Control

Controlling and Monitoring your Aquarium is Crucial, so are Topping up Evaporation Water via Automation, Heating, Cooling and Auto Top Off (ATO).

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  • Prism ATO Auto Top Off - Reef Breeders

    Prism ATO Auto Top Off - Reef Breeders

    Reef Breeders

    $79.99
    The Reef Breeders Prism-ATO  is designed to work with aquariums of all sizes, from pico desktops and All-in-One aquariums with limited space, to large reef tanks with full sumps. The Prism ATO has 3 sensors and registers your water level in a...
  • HYDROS 1" Flow Sensor - Coralvue

    HYDROS 1" Flow Sensor - Coralvue

    Hydros

    $61.99
    The HYDROS Flow Sensors are easy-to-install and measure the flow rate of water passing through it using the HYDROS app. Available in four sizes: 3/4in (40-800gph), 1in (50-1500gph), 1.5in (100-2500gph), 2in (9200-4050gph) The HYDROS Flow...
  • On Sale 15%
    Salinity Probe Stability Kit (SPS) without Pump - VCA
    On Sale 15%

    Salinity Probe Stability Kit (SPS) without Pump - VCA

    VCA Vivid Creative

    $27.95
    $23.76
    This kit was created to be used in conjunction with Neptune Systems salinity/conductivity probe.  It allows the probe to stay clean and fixes a well know issue with the salinity probe.  Microbubbles no more.  Kit Includes: Salinity...
  • HYDROS Kraken Force Port Power Cable (4 Pin WE/WELE/X10) - HYDROS

    HYDROS Kraken Force Port Power Cable (4 Pin WE/WELE/X10) - HYDROS

    Hydros

    $14.99
    This HDYROS Force Port Power Cable is used to connect the Kraken to power a WaveEngine LE, WaveEngine, XD, or Control X10. This 6ft cable has two 4-pin GX12-4 fittings. One end attaches to any of the 8 Force Ports on the Kraken and the other end to the...
  • On Sale 15%
    A3 Apex System (A3APEXSYS) - Neptune Systems
    On Sale 15%

    A3 Apex System (A3APEXSYS) - Neptune Systems

    Neptune Systems

    $629.99
    $535.49
    Key New Features in our A3 Series: The A3 Apex will include a new Magnetic Optical Sensor that is designed to better prevent water incursion and includes our classic Solid Surface Leak Detector (LD-2). The most successful aquariums are those...
  • On Sale 15%
    HMX 500S Titanium Heater w/Digital Touchpad & Guard (100-120 Gallon) - Finnex
    On Sale 15%

    HMX 500S Titanium Heater w/Digital Touchpad & Guard (100-120 Gallon) - Finnex

    Finnex

    $55.99
    $47.59
    Not your standard Aquarium heater.  The Finnex Digital touch Control HMX series sports a sleek modernized black control face that is easily controlled via it's precision touch pad.  Corrosion-r3esistant, fast heater titanium tube is engulfed in...
  • HYDROS Float Switch Sensor with Magnetic Mount

    HYDROS Float Switch Sensor with Magnetic Mount

    Hydros

    $29.99
    HYDROS Float Switch with Magnetic Mount Requires a HYDROS System to operate The HYDROS Magnetic Float Switch Sensor is a simple yet effective water level sensor that can be added to any HYDROS Control with an available Sense Port. This Float Sensor can...
  • On Sale 15%
    Turbelle High Jet Replacement Osmolator Pump (3155 & 3152) 5000.021 - Tunze
    On Sale 15%

    Turbelle High Jet Replacement Osmolator Pump (3155 & 3152) 5000.021 - Tunze

    Tunze

    $69.99
    $59.49
    The Turbelle® High Jet is a replacement dosing pump with safety extra low voltage 12 V DC for Osmolator® nano 3152 and Osmolator® 3155 and belongs to a new generation of centrifugal pumps with a high delivery height and small...
  • On Sale 10%
    HYDROS Control X4 Aquarium (Starter Pack) - Coralvue
    On Sale 10%

    HYDROS Control X4 Aquarium (Starter Pack) - Coralvue

    Hydros

    $449.99
    $404.99
    This starter kit includes all essential equipment needed to monitor and control a healthy aquarium including a Control 4 device, HYDROS App, temperature sensor, pH probe, and more. Set up is quick and easy, making this ideal for both...
  • HYDROS Leak Detection Sensor

    HYDROS Leak Detection Sensor

    Hydros

    $39.99
    Requires a HYDROS System to operate The HYDROS Leak Detection Sensor is a solid surface leak detector that can sense when freshwater or saltwater is underneath it and use that information to protect your aquarium, home, or office from total...
  • On Sale 15%
    Neo-Therm Super Flat 75 Watt Heater 6.5" - 20 Gallon - Cobalt
    On Sale 15%

    Neo-Therm Super Flat 75 Watt Heater 6.5" - 20 Gallon - Cobalt

    Cobalt Aquatics

    $54.99
    $46.74
    The all new Cobalt Aquatics NEO-Therm fully submersible electronic heaters feature a modern, super flat design with an easy to set “one touch” control system. The advanced electronic thermostat is accurate to ±0.5ºF and includes a...
  • HYDROS Wifi Smart Plug - Coralvue

    HYDROS Wifi Smart Plug - Coralvue

    Hydros

    $23.99
    The HYDROS WiFi Smart Plug is a smart power outlet designed to work with the CoralVue HYDROS platform. The Smart Plug has a 1 x 100-250V AC outlet that is WiFi controllable using the free HYDROS app for Android and iOS/Apple mobile devices. You can...
  • On Sale 20%
    6 Way Apex Switch Toggle Box - Adaptive Reef
    On Sale 20%

    6 Way Apex Switch Toggle Box - Adaptive Reef

    Adaptive Reef

    $134.99
    $107.99
    Adaptive Reef in conjunction with Harry's Aquatics is pleased to bring a full line of products designed to work with and enhance the user experience with aquarium controllers. From switch control boxes and 0-10v based devices to warning lights and...
  • On Sale 15%
    Neo-Therm Super Flat 150 Watt Heater 11" - 40 Gallon - Cobalt
    On Sale 15%

    Neo-Therm Super Flat 150 Watt Heater 11" - 40 Gallon - Cobalt

    Cobalt Aquatics

    $69.99
    $59.49
    The all new Cobalt Aquatics NEO-Therm fully submersible electronic heaters feature a modern, super flat design with an easy to set “one touch” control system. The advanced electronic thermostat is accurate to ±0.5ºF and includes a...
  • HYDROS Rope Leak Sensor Mounting Clips (10 pack)

    HYDROS Rope Leak Sensor Mounting Clips (10 pack)

    Hydros

    $4.99
    10 pack of installation clips for the HYDROS Rope Leak Detector Easily and securely mount the flexible HYDROS Rope Leak Detection Sensor to most surfaces to better sense the presence of moisture anywhere along the rope. 
  • On Sale 15%
    Cooling Fan 2 - Seaside Aquatics
    On Sale 15%

    Cooling Fan 2 - Seaside Aquatics

    Bubble Magus - Seaside

    $29.99
    $25.49
    No assembly requiredEasy installation (Clamp mounting bracket) Clamp mounting bracket can fit over aquarium walls up to 1/2" thickExtend Longevity of your lighting systemLow power consumptionAdjustable direction of air flowDimension: 8" x 6.5"x 1.6"Air...
  • HYDROS 3/4" Flow Sensor - Coralvue

    HYDROS 3/4" Flow Sensor - Coralvue

    Hydros

    $58.99
    The HYDROS Flow Sensors are easy-to-install and measure the flow rate of water passing through it using the HYDROS app. Available in four sizes: 3/4in (40-800gph), 1in (50-1500gph), 1.5in (100-2500gph), 2in (9200-4050gph) The HYDROS Flow...
  • On Sale 15%
    A3 Apex Jr Aquarium Monitor (A3JRSYS) - Neptune Systems
    On Sale 15%

    A3 Apex Jr Aquarium Monitor (A3JRSYS) - Neptune Systems

    Neptune Systems

    $299.95
    $254.96
    The A3 Jr is a Monitoring Only solution.  You can not turn anything on or off with it straight out of the box.  It becomes a full controller however as soon as you add a Powerbar.  To make it a full controller just buy an Energy Bar...
  • On Sale 20%
    White Standard Aquarium Controller Mounting Board - Adaptive Reef
    On Sale 20%

    White Standard Aquarium Controller Mounting Board - Adaptive Reef

    Adaptive Reef

    $153.99
    $123.19
    The perfect solution to help organize and control the rat's nest of wires that most aquariums suffer from.  This board was created to easily allow you to mount an apex, power strips, equipment controllers and much more so they are easily accessed an...
  • On Sale 10%
    HYDROS WaveEngine v2 Pump Controller
    On Sale 10%

    HYDROS WaveEngine v2 Pump Controller

    Hydros

    $299.99
    $269.99
    The HYDROS WaveEngine v2 can control, monitor, and even supply power to a variety of different aquarium pumps. Now you can use pumps from different brands together using a single, integrated flow management system. Control and monitor pumps...
  • On Sale 20%
    4K Gyre Flow Pump (Pump Only) - Icecap
    On Sale 20%

    4K Gyre Flow Pump (Pump Only) - Icecap

    Icecap

    $159.99
    $127.99
    The IceCap Gyre is back and better than ever! The all-new IceCap 4K Gyre Flow Pump is more powerful than its 3K predecessor.  Gyre 4K Pump Features & Benefits Unique Gyre Flow: Virtually Eliminates Dead Spots Evenly Distributed Linear...
  • On Sale 15%
    Apex 30' Aquabus EXTENSION Cable ( M/F ) - Neptune Systems
    On Sale 15%

    Apex 30' Aquabus EXTENSION Cable ( M/F ) - Neptune Systems

    Neptune Systems

    $34.99
    $29.74
    AQUABUS EXTENSION CABLE (M/F)-VARIOUS LENGTHS The Apex is a modular system that allows you to connect many modules together in either a “daisy-chain” or star topology method. Use this cable to extend a M/M Aquabus Cable. Remember,...
  • On Sale 10%
    HYDROS Control X2 Entry Level Aquarium (Starter Pack) - Coralvue
    On Sale 10%

    HYDROS Control X2 Entry Level Aquarium (Starter Pack) - Coralvue

    Hydros

    $199.99
    $179.99
    The HYDROS Control 2 Starter Pack is the first affordable and easy-to-use aquarium controller kit in the aquatic industry. This starter pack includes all essential equipment needed to monitor and control a healthy aquarium including a...
  • HYDROS Sole Continuous-Duty Liquid Dosing Pump

    HYDROS Sole Continuous-Duty Liquid Dosing Pump

    Hydros

    $299.99
    The HYDROS Sole is an aquarium controller hybrid with a heavy-duty liquid dosing pump designed for continuous dosing applications like controlling effluent in a calcium reactor, kalkwasser additions, dosing liquid foods, feeding a...
  • On Sale 15%
    Full Apex A3 PRO Trident DOS QD Package - Neptune Systems
    On Sale 15%

    Full Apex A3 PRO Trident DOS QD Package - Neptune Systems

    Neptune Systems

    $1,970.97
    $1,675.32
    This Package Includes: 1x - Full Apex A3 PRO WIFI Controller System 1x - Apex TRIDENT - Automatic Water Tester w/2 Month Reagents & Calibration Fluids 1x - Neptune DOS QD Dosing Pump The New Apex System includes probes for Temperature, pH,...
  • EXO Auto Top Off ATO - Reef Breeders

    EXO Auto Top Off ATO - Reef Breeders

    Reef Breeders

    $99.99
    The Reef Breeders Exo-ATO (External ATO) is one of the first ATO systems to contain all electronics outside of your aquarium. The controller and sensor mount to the outside of the glass, and a small magnetic ring is inserted at your desired water level...
  • On Sale 10%
    HYDROS WaveEngine LE Pump Controller - Coralvue
    On Sale 10%

    HYDROS WaveEngine LE Pump Controller - Coralvue

    Hydros

    $199.99
    $179.99
    The WaveEngine LE allows you to easily add different brand pumps to your aquarium to obtain the ultimate flow. Specify the minimum and maximum speed each pump can run while working together in multiple flow presets such as sync, anti-sync, triangle wave,...
  • On Sale 15%
    Thermocontrol-E (150 Watt) Aquarium Heater - EHEIM
    On Sale 15%

    Thermocontrol-E (150 Watt) Aquarium Heater - EHEIM

    EHEIM

    $49.99
    $42.49
    Made in Germany, 3 Year Warranty, Run Dry Protection! The obvious ideas are often the best. This also applies to the aquarium heating element. It is simply hung in the water and heats it up. The principle is the same as it was decades ago. But in the...
  • On Sale 15%
    Magnet Probe Holder - Sea Side Aquatics
    On Sale 15%

    Magnet Probe Holder - Sea Side Aquatics

    Bubble Magus - Seaside

    $25.49
    $21.67
    BUBBLE MAGUS SEASIDE AQUATICS MAGNETIC AQUARIUM QUAD (4) PROBE HOLDERHolder can fit up to four probes. It’s design to hold ph, ORP, salinity and/or temp probe.It has a magnet on the back and can be easily install on the sump wall, baffle divider or...
  • On Sale 15%
    Neo-Therm Super Flat 100 Watt Heater 10" - 29 Gallon - Cobalt
    On Sale 15%

    Neo-Therm Super Flat 100 Watt Heater 10" - 29 Gallon - Cobalt

    Cobalt Aquatics

    $59.99
    $50.99
    The all new Cobalt Aquatics NEO-Therm fully submersible electronic heaters feature a modern, super flat design with an easy to set “one touch” control system. The advanced electronic thermostat is accurate to ±0.5ºF and includes a...
  • On Sale 30%
    100 Watt Titanium Heater Element - Bulk Reef Supply
    On Sale 30%

    100 Watt Titanium Heater Element - Bulk Reef Supply

    Bulk Reef Supply

    $64.99
    $45.49
    We have been on the hunt for a reliable heating element that solves a lot of the issues we currently have with other heaters in the hobby. We have always had issues with heaters that have built-in controllers and segregating the controller out from the...
  • On Sale 15%
    Neo-Therm Super Flat 50 Watt Heater 6.5" - 12 Gallon - Cobalt
    On Sale 15%

    Neo-Therm Super Flat 50 Watt Heater 6.5" - 12 Gallon - Cobalt

    Cobalt Aquatics

    $49.99
    $42.49
    The all new Cobalt Aquatics NEO-Therm fully submersible electronic heaters feature a modern, super flat design with an easy to set “one touch” control system. The advanced electronic thermostat is accurate to ±0.5ºF and includes a...
  • On Sale 10%
    HYDROS Minnow 2 Head Dosing Controller
    On Sale 10%

    HYDROS Minnow 2 Head Dosing Controller

    Hydros

    $249.99
    $224.99
    The HYDROS Minnow features two independent micro-liquid dosing pumps for precise dosing of your preferred liquid supplements, including two-part and trace elements. This highly versatile controller can effortlessly handle essential...