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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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  • Thermocontrol-E (250 Watt) Aquarium Heater Kit - EHEIM Inkbird

    Thermocontrol-E (250 Watt) Aquarium Heater Kit - EHEIM Inkbird

    EHEIM

    $109.99
    Kit Includes: EHEIM Thermostat E Heater - Made in Germany, 3 Year Warranty, Run Dry Protection & INK BIRD Dual Aquarium Thermostat Temp Controller for Redundancy! The obvious ideas are often the best. This also applies to the aquarium heating...
  • Thermocontrol-E (200 Watt) Aquarium Heater Kit - EHEIM Inkbird

    Thermocontrol-E (200 Watt) Aquarium Heater Kit - EHEIM Inkbird

    EHEIM

    $109.99
    Kit Includes: EHEIM Thermostat E Heater - Made in Germany, 3 Year Warranty, Run Dry Protection & INK BIRD Dual Aquarium Thermostat Temp Controller for Redundancy! The obvious ideas are often the best. This also applies to the aquarium heating...
  • Apex Trident Reagent Kit (6 Month Supply) - Neptune Systems

    Apex Trident Reagent Kit (6 Month Supply) - Neptune Systems

    Neptune Systems

    $109.99
    Trident Reagent Kit 6 Month Supply - With six month kits, the cost of running the Trident is less than $17 per month - that’s averages out to about 7 cents a test! Neptune Systems recommends keeping on hand no more Trident reagent than you might...
  • Apex FMM Flow Sensor – 2″ (FS-200) - Neptune Systems

    Apex FMM Flow Sensor – 2″ (FS-200) - Neptune Systems

    Neptune Systems

    $109.99
    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 flow sensor itself uses British Standard Parallel Pipe...
  • Fluid Monitoring Module (Module Only) - Neptune Systems

    Fluid Monitoring Module (Module Only) - Neptune Systems

    Neptune Systems

    $109.99
    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 Classic, Apex Lite, Apex Jr.) via it’s AquaBus...
  • 800 Watt  Titanium Heater w/Digital Controller (140-265 Gallon) - Finnex

    800 Watt Titanium Heater w/Digital Controller (140-265 Gallon) - Finnex

    Finnex

    $109.99
    The Titanium Finnex Heaters are corrosion-resistant, extending the life exponentially from saltwater damage.  Virtually unbreakable, especially in comparison with the standard glass aquarium, these tube are built to last.  The ultra heating...
  • Apex VDM - Variable LED Dimming - Neptune Systems

    Apex VDM - Variable LED Dimming - Neptune Systems

    Neptune Systems

    $109.99
    Every day it seems there is yet another LED light fixture released. Each one with its own method for control and dimming. With this module, you can outfit your Apex System with the ability to control many different brands of LED lights…from...
  • STE 400W Digital Titanium Heater w/Guard UL (80-100 Gallon) - Finnex

    STE 400W Digital Titanium Heater w/Guard UL (80-100 Gallon) - Finnex

    Finnex

    $106.99
    STE Titanium Heater Series Safety: Redundancy circuit technology, non-resumable fuse, safety guard Titanium Heating Element: Virtually unbreakable, corrosion resistant Controller:  Smart 68-92 deg F, precise temperature control, +/- 1 deg F...
  • 500 Watt  Titanium Heater w/Digital Controller (70-130 Gallon) - Finnex

    500 Watt Titanium Heater w/Digital Controller (70-130 Gallon) - Finnex

    Finnex

    $104.99
    The Titanium Finnex Heaters are corrosion-resistant, extending the life exponentially from saltwater damage.  Virtually unbreakable, especially in comparison with the standard glass aquarium, these tube are built to last.  The ultra heating...
  • Double Junction Lab Grade ORP Probe - Neptune Systems

    Double Junction Lab Grade ORP Probe - Neptune Systems

    Neptune Systems

    $104.99
    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 compartment, it still has to go through the second...
  • HYDROS 1.5" Flow Sensor - Coralvue

    HYDROS 1.5" Flow Sensor - Coralvue

    Hydros

    $99.99
    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...
  • 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...
  • 24v Apex Red/Green Status Indicator (Dual) - Adaptive Reef

    24v Apex Red/Green Status Indicator (Dual) - Adaptive Reef

    Adaptive Reef

    $99.99
    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...
  • Thermocontrol-E (150 Watt) Aquarium Heater Kit - EHEIM Inkbird

    Thermocontrol-E (150 Watt) Aquarium Heater Kit - EHEIM Inkbird

    EHEIM

    $99.99
    Kit Includes: EHEIM Thermostat E Heater - Made in Germany, 3 Year Warranty, Run Dry Protection & INK BIRD Dual Aquarium Thermostat Temp Controller for Redundancy! The obvious ideas are often the best. This also applies to the aquarium heating...
  • Thermocontrol-E (125 Watt) Aquarium Heater Kit - EHEIM Inkbird

    Thermocontrol-E (125 Watt) Aquarium Heater Kit - EHEIM Inkbird

    EHEIM

    $99.99
    Kit Includes: EHEIM Thermostat E Heater - Made in Germany, 3 Year Warranty, Run Dry Protection & INK BIRD Dual Aquarium Thermostat Temp Controller for Redundancy! The obvious ideas are often the best. This also applies to the aquarium heating...
  • Thermocontrol-E (100 Watt) Aquarium Heater Kit - EHEIM Inkbird

    Thermocontrol-E (100 Watt) Aquarium Heater Kit - EHEIM Inkbird

    EHEIM

    $99.99
    Kit Includes: EHEIM Thermostat E Heater - Made in Germany, 3 Year Warranty, Run Dry Protection & INK BIRD Dual Aquarium Thermostat Temp Controller for Redundancy! The obvious ideas are often the best. This also applies to the aquarium heating...
  • TS1 Single Dosing Pump - Bubble Magus

    TS1 Single Dosing Pump - Bubble Magus

    Bubble Magus - Seaside

    $99.95
    Bubble Magus Single Dosing Pump TS1 Unit will dose from 1ml up to 999ml per day. Unit already pre-programmed below. 1-11ml cdose 1 time per day 12-23ml dose 2 times per day 24-35ml dose 4 times per day 36-47ml dose 6 times per day 48-59ml dose 8...
  • 300 Watt  Titanium Heater w/Digital Controller (40-80 Gallon) - Finnex

    300 Watt Titanium Heater w/Digital Controller (40-80 Gallon) - Finnex

    Finnex

    $95.99
    The Titanium Finnex Heaters are corrosion-resistant, extending the life exponentially from saltwater damage.  Virtually unbreakable, especially in comparison with the standard glass aquarium, these tube are built to last.  The ultra heating...
  • STE 200W Digital Titanium Heater w/Guard UL (40-60 Gallon) - Finnex

    STE 200W Digital Titanium Heater w/Guard UL (40-60 Gallon) - Finnex

    Finnex

    $94.99
    STE Titanium Heater Series Safety: Redundancy circuit technology, non-resumable fuse, safety guard Titanium Heating Element: Virtually unbreakable, corrosion resistant Controller:  Smart 68-92 deg F, precise temperature control, +/- 1 deg F...
  • Double Junction Lab Grade pH Probe - Neptune Systems

    Double Junction Lab Grade pH Probe - Neptune Systems

    Neptune Systems

    $94.99
    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 compartment, it still has to go through the second...
  • Apex PM2 - Salinity, Temperature, I/O Expansion Module - Neptune Systems

    Apex PM2 - Salinity, Temperature, I/O Expansion Module - Neptune Systems

    Neptune Systems

    $94.99
    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 until it’s too late. With this module, your Apex...
  • Apex PM1 - pH or ORP, Temperature, I/O Expansion Module - Neptune Systems

    Apex PM1 - pH or ORP, Temperature, I/O Expansion Module - Neptune Systems

    Neptune Systems

    $94.99
    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 ATO, feed buttons, or whatever else you may come up...
  • ATO EZ Automatic Top Off System - IceCap

    ATO EZ Automatic Top Off System - IceCap

    Icecap

    $89.99
    Replenish Evaporated Water... with Confidence! The IceCap ATO EZ System is an easy-to-use pump and sensor combo that offers peace of mind when replenishing evaporated water to an aquarium. Its twin optical sensors extend the device’s...
  • 600 Watt Titanium Heater Element - Bulk Reef Supply

    600 Watt Titanium Heater Element - Bulk Reef Supply

    Bulk Reef Supply

    $89.99
    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...
  • Thermocontrol-E  (75 Watt) Aquarium Heater Kit - EHEIM Inkbird

    Thermocontrol-E (75 Watt) Aquarium Heater Kit - EHEIM Inkbird

    EHEIM

    $89.99
    Kit Includes: EHEIM Thermostat E Heater - Made in Germany, 3 Year Warranty, Run Dry Protection & INK BIRD Dual Aquarium Thermostat Temp Controller for Redundancy! The obvious ideas are often the best. This also applies to the aquarium heating...
  • Thermocontrol-E (50 Watt) Aquarium Heater Kit - EHEIM Inkbird

    Thermocontrol-E (50 Watt) Aquarium Heater Kit - EHEIM Inkbird

    EHEIM

    $89.99
    Kit Includes: EHEIM Thermostat E Heater - Made in Germany, 3 Year Warranty, Run Dry Protection & INK BIRD Dual Aquarium Thermostat Temp Controller for Redundancy! The obvious ideas are often the best. This also applies to the aquarium heating...
  • Thermocontrol-E (25 Watt) Aquarium Heater Kit - EHEIM Inkbird

    Thermocontrol-E (25 Watt) Aquarium Heater Kit - EHEIM Inkbird

    EHEIM

    $89.99
    Kit Includes: EHEIM Thermostat E Heater - Made in Germany, 3 Year Warranty, Run Dry Protection & INK BIRD Dual Aquarium Thermostat Temp Controller for Redundancy! The obvious ideas are often the best. This also applies to the aquarium heating...
  • Neo-Therm Super Flat 200 Watt Heater 11" - 55 Gallon - Cobalt

    Neo-Therm Super Flat 200 Watt Heater 11" - 55 Gallon - Cobalt

    Cobalt Aquatics

    $89.99
    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...
  • Helio 350 Watt PTC Heating Element - Innovative Marine

    Helio 350 Watt PTC Heating Element - Innovative Marine

    Innovative Marine

    $87.99
    Innovative Marine is proud to introduce HELIO, our new line of heaters utilizing ultra-safe PTC (positive temperature coefficient) technology. Up until now, the way we chose to heat our aquariums have been electric immersion heaters that use resistance...
  • Level Sensor - Optical -  Version 2 - GHL

    Level Sensor - Optical - Version 2 - GHL

    GHL

    $87.90
    Level sensor, optical with Mini-DIN-plug and 3 m cable. For horizontal mounting only. (Sensor fastener PL-LF-S12 angled). Possible uses of level sensors provided by the ProfiLux Controller: Auto Top Off with one or two...
  • 23" Liquid Level Sensor (LLS-23) - Neptune Systems

    23" Liquid Level Sensor (LLS-23) - Neptune Systems

    Neptune Systems

    $84.99
    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 consider is utilizing these advancing a roller mat...
  • ULTRA Thin Aquarium Heater 200 Watt - AquaEl

    ULTRA Thin Aquarium Heater 200 Watt - AquaEl

    AquaEl

    $81.72
    The heater is easy to control using the ONE-TOUCH system that employs a single button surrounded by a ring of LEDs indicating the current and set temperatures. The electronic thermostat operates with an exceptional precision (+/- 0.25° C) to...
  • Micro Aquarium Auto Top Off ATO - PNW Customs

    Micro Aquarium Auto Top Off ATO - PNW Customs

    PNW Custom

    $79.99
    The Micro Aquarium Auto Top Off is designed to fit in the Micro Reef-Ready Tank sump, Small-In-One Aquarium, and just about every other tank sizing up to 40 gallons. An Auto Top Off will significantly boost your tank's stability by keep your salinity...
  • Helio Universal Heater Controller - Innovative Marine

    Helio Universal Heater Controller - Innovative Marine

    Innovative Marine

    $79.99
    The HELIO smart controller bridges the gap between hobby grade and commercial controllers. Its processor goes hand in hand with the titanium sensor to keep your temperature readings stable. The controller comes fitted with a titanium remote temperature...