Live Help Chat

Aquarium controllers are an essential part of a complete aquarium system. These sophisticated automation systems include a portfolio of accessories to monitor and control equipment like water level sensors, ATO pumps, and other devices.

At AquaCave, we offer some of the best selections and best prices on Aquarium Controllers and controller accesories for your marine, reef, and freshwater aquarium.

  • Seneye Dri Box Seneye Dri Box Seneye Dri Box Seneye Dri Box

    Seneye

    Seneye Dri Box

    Seneye Dri Box The seneye DRi is a waterproof connection box that allows you to keep your electrical connections safe and tidy; best of all there is no need for rewiring or expensive electricians. DRi is ideal for both ponds and aquariums. With a...

    $45.00
  •  API Reef Master Test Kit   API Reef Master Test Kit

    API

    API Reef Master Test Kit

    API Master Reef Test KitTo maintain and grow healthy corals, the correct balance of calcium and carbonates is essential, as are low levels of phosphate and nitrate. This kit provides highly accurate testing for each of these critical parameters: ...

    $44.99
  •  Neptune Systems MPR Apex Magnetic Probe Holder

    Neptune Systems

    Neptune Systems MPR Apex Magnetic Probe Holder

    Neptune Apex Magnetic Probe HolderThe little new product we promised. It may be little, but it has been in demand for a long time. The MPR - Magnetic Probe Rack was designed specifically for the Apex and will hold our larger diameter temperature probe,...

    $44.99
  • ATI ICP-OES Pro Water Analysis Kit ATI ICP-OES Pro Water Analysis Kit

    ATI

    ATI ICP-OES Pro Water Analysis Kit

    ATI ICP-OES Pro Water Analysis Kit The ATI ICP-OES Pro kit is identical to the original ATI ICP-OES test. The ATI ICP-OES Pro Water Analysis is a laboratory water analysis of 43 parameters in a reef tank that provides a complete...

    $44.95
  • Neptune Systems LD-3 Optical Multi-Surface Leak Sensor Neptune Systems LD-3 Optical Multi-Surface Leak Sensor Neptune Systems LD-3 Optical Multi-Surface Leak Sensor

    Neptune Systems

    Neptune Systems LD-3 Optical Multi-Surface Leak Sensor

    Neptune Systems LD-3 Optical Multi-Surface Leak Sensor Neptune's LD-3 Multi-Surface Optical Leak Sensor marks a significant improvement over its analog counterpart, the LD-2 Solid Surface Leak Detection Probe. While the LD-2 utilizes conductive strips...

    $42.99
  • HYDROS 4 Outlet WiFi AC Power Strip HYDROS 4 Outlet WiFi AC Power Strip HYDROS 4 Outlet WiFi AC Power Strip HYDROS 4 Outlet WiFi AC Power Strip HYDROS 4 Outlet WiFi AC Power Strip

    HYDROS

    HYDROS 4 Outlet WiFi AC Power Strip

    HYDROS 4 Outlet WiFi AC Power Strip A Smart and Affordable Way to Power Your Aquarium Gear The HYDROS Power 4 WiFi Power Strip is a smart power bar designed to work with the CoralVue HYDROS platform.  The Power 4 has 4 x 120V AC outlets and 4 x...

    $41.99
  • HYDROS Leak Detection Sensor HYDROS Leak Detection Sensor HYDROS Leak Detection Sensor HYDROS Leak Detection Sensor HYDROS Leak Detection Sensor

    HYDROS

    HYDROS Leak Detection Sensor

    HYDROS Leak Detection Sensor 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 disaster...

    $41.99
  • HYDROS Rope Leak Sensor Kit HYDROS Rope Leak Sensor Kit

    HYDROS

    HYDROS Rope Leak Sensor Kit

    HYDROS Rope Leak Sensor Kit The HYDROS Leak Detection Rope Sensor is the first of its kind in the aquarium industry. The moment water comes into contact with it, that information can be used to alert you on your smartphone, sound an alarm, turn pumps...

    $41.99
  • HYDROS Skimmer Sensor HYDROS Skimmer Sensor HYDROS Skimmer Sensor HYDROS Skimmer Sensor HYDROS Skimmer Sensor

    HYDROS

    HYDROS Skimmer Sensor

    HYDROS Skimmer Sensor The HYDROS Skimmer Sensor serves a very specific and important role: it prevents your protein skimmer from overflowing onto the floor or back into your sump. The way it works is easy: just place the sensor inside any protein...

    $41.99
  • HYDROS Triple Optical Water Level Sensor HYDROS Triple Optical Water Level Sensor HYDROS Triple Optical Water Level Sensor HYDROS Triple Optical Water Level Sensor HYDROS Triple Optical Water Level Sensor

    HYDROS

    HYDROS Triple Optical Water Level Sensor

    HYDROS Triple Optical Water Level Sensor 3 Water Level Sensors for Added Redundancy The HYDROS Triple Optical Water Level Sensor can be used for a variety of aquarium applications, such as sensing when your tank needs to be topped off or detecting when...

    $41.99
  • HYDROS Water Level Sensor HYDROS Water Level Sensor HYDROS Water Level Sensor HYDROS Water Level Sensor

    HYDROS

    HYDROS Water Level Sensor

    HYDROS Water Level Sensor The HYDROS Water Level Sensor is an optical sensor you can use for a variety of aquarium applications, such as sensing when your tank needs to be topped off or to detect when a dosing container needs a refill. It plugs into any...

    $41.99
  • Neptune Systems MOS Magnetic Optical Sensor Neptune Systems MOS Magnetic Optical Sensor Neptune Systems MOS Magnetic Optical Sensor

    Neptune Systems

    Neptune Systems MOS Magnetic Optical Sensor

    Neptune Systems MOS Magnetic Optical Sensor The Neptune MOS replaces the previous OS-1-M and features an updated design that fits into tighter spaces and helps to prevent water incursion into the sensor. The MOS plugs into an Apex FMM port and uses...

    $41.99
  • HYDROS Diaphragm Water Pump HYDROS Diaphragm Water Pump HYDROS Diaphragm Water Pump HYDROS Diaphragm Water Pump HYDROS Diaphragm Water Pump

    HYDROS

    HYDROS Diaphragm Water Pump

    HYDROS Diaphragm Water Pump The HYDROS Diaphragm Pump is a small 12V Drive Port accessory that uses positive external displacement to move liquids. It is a smart alternative to standard internal auto-top-off (ATO) pumps. Diaphragm Water Pump The HYDROS...

    $40.99
  •  API Freshwater Master Test Kit   API Freshwater Master Test Kit

    API

    API Freshwater Master Test Kit

    API Master Freshwater Test Kit This kit tests tap water and aquarium water for five different parameters that affect the health of freshwater fish: pH, High Range pH, Ammonia, Nitrite and Nitrate.  Highly accuate and economical.  Unique,...

    $39.99
  •  API Saltwater Master Test Kit   API Saltwater Master Test Kit

    API

    API Saltwater Master Test Kit

    API Master Saltwater Test Kit.A complete kit for testing marine aquarium water. Tests water four ways to protect marine fish and invertebrates from dangerous water conditions. Kit includes tests for: High Range pH, Ammonia, Nitrite, Nitrate, plus four...

    $39.99
  • Tropic Marin Hydrometer Tropic Marin Hydrometer Glass Graduated Cylinder With Plastic Hex Base, 500 ml.

    Tropic Marin Hydrometer

    Tropic Marin Hydrometer NOTE: The specific gravity is temperature dependent. With increasing temperature the specific gravity decreases. Therefore, the measured water temperature should be 25 °C / 77 °F to obtain a correct result.For an...

    $39.99
  • HYDROS System Command Bus Cable 50 ft. (DATA ONLY)

    HYDROS

    HYDROS System Command Bus Cable 50 ft. (DATA ONLY)

    HYDROS System Command Bus Cable 50 ft. (DATA ONLY) CoralVue HYDROS 5PIN System Command Bus Cable (DATA ONLY) This HYDROS System Command Bus DATA ONLY Cable allows HYDROS devices to communicate. This is a DATA ONLY cable that cannot supply power from...

    $37.99
  • HYDROS WiFi Fish Feeder HYDROS WiFi Fish Feeder HYDROS WiFi Fish Feeder HYDROS WiFi Fish Feeder HYDROS WiFi Fish Feeder

    HYDROS

    HYDROS WiFi Fish Feeder

    HYDROS wifi fish feeder Feed Your Fish In Confidence  The HYDROS Automatic WiFi Fish Feeder is suitable for a variety of fish foods. A HYDROS Control is required to operate. The Fish Feeder is WiFi controllable using the free HYDROS app for Android...

    $36.99
  • Neptune Systems 30' AquaBus Cable (Male / Male)

    Neptune Systems

    Neptune Systems 30' AquaBus Cable (Male / Male)

    Neptune Systems 30' AquaBus Cable (Male / Male) This is a thirty foot Male/Male Aquabus cable that connects one module to another or connects to an Aquabus extension cable.  This cable is intended to connect modules from one location to...

    $34.99
  • Neptune Systems Flow Sensor - 1/2" with adapters - FS50

    Neptune Systems

    Neptune Systems Flow Sensor - 1/2" with adapters - FS50

    Neptune Systems Flow Sensor - 1/2" with adapters - FS50 Usually used with aquarium accessories like reactors, carbon/GFO filters, etc., this flow sensor can be placed in line with the flow on any pipe, connected to the FMM, and communicate to your Apex...

    $34.99
  • Neptune Systems SV1 Solenoid Valve

    Neptune Systems

    Neptune Systems SV1 Solenoid Valve

    Neptune Systems SV1 Solenoid Valve This 24VDC powered, normally-closed (NC), solenoid valve has push-fit tubing input and outputs designed for standard 1/4″ tubing. The electrical connection on this solenoid valve fits the DC24 accessory ports...

    $34.99
  • Sea Side Aquatics Magnetic Float Switch Sea Side Aquatics Magnetic Float Switch Sea Side Aquatics Magnetic Float Switch Sea Side Aquatics Magnetic Float Switch

    Seaside

    Sea Side Aquatics Magnetic Float Switch

    Sea Side Aquatics Magnetic Float Switch Magnetic Float Switch Sensor Super strong magnet accommodates glass up to 3/4" thick  Sea Side Aquatics Magnetic Float Switch Magnetic Float Switch Sensor Super strong magnet accommodates glass up to...

    Was: $39.95
    Now: $33.96
  • Pinpoint Wireless Digital Thermometer

    Pinpoint - American Marine

    Pinpoint Wireless Digital Thermometer

    Pinpoint Wireless Digital Thermometer Utilizing a radio wave signal, the remote sensor(s) will measure the temperature at the waterproof probe tip and send the information to the PINPOINT Temperature Display Monitor, which will display the temperature...

    Was: $37.95
    Now: $32.26
  • HYDROS DC CO2 Solenoid Valve HYDROS DC CO2 Solenoid Valve HYDROS DC CO2 Solenoid Valve

    HYDROS

    HYDROS DC CO2 Solenoid Valve

    HYDROS DC CO2 Solenoid Valve The HYDROS DC CO2 Solenoid Valve is electronically controlled and plugs into a Drive Port on the Control 2 and Control 4 where it can be monitored and controlled via the HYDROS app.  The HYDROS DC CO2 Solenoid...

    $31.49
  • HYDROS Float Switch Sensor with Magnetic Mount HYDROS Float Switch Sensor with Magnetic Mount HYDROS Float Switch Sensor with Magnetic Mount

    HYDROS

    HYDROS Float Switch Sensor with Magnetic Mount

    HYDROS Float Switch Sensor with Magnetic Mount 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 trigger actions such as...

    $30.99
  • Red Sea Nitrate Pro Test Kit - Reagent Refill Kit Red Sea Nitrate Pro Test Kit - Reagent Refill Kit

    Red Sea

    Red Sea Nitrate Pro Test Kit - Reagent Refill Kit

    Red Sea Nitrate Pro Test Kit - Reagent Refill Kit ADVANCED COLORIMETRIC TEST WITH COMPARATOR, MEASURING THE LEVEL OF NITRATE IN YOUR REEF AQUARIUM, WITH EXCEPTIONALLY HIGH ACCURACY OF 0.12PPM NO3 Red Sea’s Nitrate Pro Reef Test Kit is an advanced...

    $30.99
  • Neptune Systems OS1 Optical Sensor Neptune Systems OS1 Optical Sensor

    Neptune Systems

    Neptune Systems OS1 Optical Sensor

    Neptune Systems OS1 Optical Sensor This sensor plugs into your FMM and, using reflected infrared light, will signal your Apex when it changes state from being wet to dry or dry to wet. This sensor can be used for constructing your own ATO...

    $29.99
  •  Probe Holder Fitting  Probe Holder Fitting

    Reef Octopus

    Probe Holder Fitting

    Probe Holder This black nylon compression fitting designed to hold standard pH and ORP probes. Threaded end is 1/2-14 NPT. Includes PVC dummy plug in case probe is unavailable during equipment use. Comonly used for calcium reactors and collection...

    $29.95
  • ATI ICP-OES Basic Water Analysis - US Version

    ATI

    ATI ICP-OES Basic Water Analysis - US Version

    ATI ICP-OES Basic Water Analysis - US Version The ATI ICP-OES Basic Water Analysis is a laboratory water analysis of 40 parameters in a reef tank that provides a complete overview of a tank's health, which is impossible with traditional test...

    $29.95
  • Deluxe Salinity Refractometer with ATC Deluxe Salinity Refractometer with ATC Deluxe Salinity Refractometer with ATC

    AquaCave

    Deluxe Salinity Refractometer with ATC

    Deluxe Salinity Refractometer with ATC For the most precise measurement of salinity, the experts use a Refractometer. This high-tech instrument is used to measure salinity when perfect conditions are needed for breeding, or keeping very delicate corals...

    Was: $34.95
    Now: $29.95
  • PINPOINT 15' ext. Cable for pH or ORP Probe PINPOINT 15' ext. Cable for pH or ORP Probe

    Pinpoint - American Marine

    PINPOINT 15' ext. Cable for pH or ORP Probe

    PINPOINT 15' ext. Cable for pH or ORP Probe  PINPOINT 15 foot extension cable for the pH or the ORP/Probe. This will add an additional 15 feet onto the 10 feet of the probe cable for a total of 25 feet. This extension cable will fit any...

    $29.95
  • PinPoint Calibration Thermometer

    Pinpoint - American Marine

    PinPoint Calibration Thermometer

    PinPoint Calibration Thermometer American Marine Inc. is proud to introduce the PINPOINT®Calibration Thermometer, the only truly accurate and affordable digital thermometer system with a large range calibration feature and a replaceable probe...

    Was: $34.95
    Now: $29.71
  • Seneye Float Seneye Float Seneye Float Seneye Float Seneye Float

    Seneye

    Seneye Float

    Seneye Float This seneye Float allows for the any seneye device to be floated in a pond, aquarium or sump. The seneye float offers flexibility for those who do not wish to use the sucker to attach the seneye device or if you want to get direct...

    $29.00
  • Red Sea MCP Magnesium Test Kit - 75 Tests Red Sea MCP Magnesium Test Kit - 75 Tests

    Red Sea

    Red Sea MCP Magnesium Test Kit - 75 Tests

    Red Sea MCP Magnesium Test Kit - 75 Tests Red Sea’s user-friendly Magnesium titration test provides a quick and reliable measurement of Magnesium in your aquarium to an accuracy of either 50ppm or 100ppm according to your needs. Kit includes easy to...

    $28.99
  • Red Sea MCP Phosphate Test Kit Red Sea MCP Phosphate Test Kit

    Red Sea

    Red Sea MCP Phosphate Test Kit

    Red Sea MCP Phosphate Test Kit Accurate measurement of Phosphate in marine aquariums PO4 Red Sea’s colorimetric Phosphate test kit provides a quick and reliable measurement of Phosphate in your aquarium to an accuracy of 0.1ppm PO4. This test...

    $28.99
  • Salifert Strontium Test Kit

    Salifert

    Salifert Strontium Test Kit

    Salifert Strontium Aquarium Test Kit EXP. Date: 04/2018 Strontium plays an important role by accelerating coral and calcareous algae growth. NSW contains approx. 7 – 9 mg/L strontium. Since the growth of corals and calcareous algae goes hand in...

    Was: $33.18
    Now: $28.20
  • Salifert Iodine Test Kit

    Salifert

    Salifert Iodine Test Kit

    Salifert Iodine Aquarium Test KitIodine is present in NSW (Natural seawater) in a very low concentration (0.06 mg/L or 0.06 ppm). Iodine occurs as different species. Some of them are iodide, iodate and hypoiodite.Generally when we say iodine then we mean...

    Was: $33.14
    Now: $28.17
  • AutoAqua Smart Stir AutoAqua Smart Stir AutoAqua Smart Stir AutoAqua Smart Stir

    AutoAqua

    AutoAqua Smart Stir

    AutoAqua Smart Stir The Auto Aqua Smart Stir makes testing with liquid reagents a fast and effortless process. Just drop the magnetic stirring bar in the testing vial, put it on the stir base, and press the power button. Forget about tediously adding a...

    Was: $32.99
    Now: $28.04
  • Hanna Salinity Tester Calibration Solution. 25 Sachets Hanna Salinity Tester Calibration Solution. 25 Sachets

    Hanna Instruments

    Hanna Salinity Tester Calibration Solution. 25 Sachets

    Hanna Salinity Tester Calibration Solution. 25 Sachets HI70024P is a premium quality 35.00 ppt salinity calibration solution standardized with a conductivity meter that has been calibrated with  potassium chloride NIST 2202 SRM (Standard Reference...

    Was: $32.99
    Now: $28.04
  • Fragtags Parwise Essential Kit Fragtags Parwise Essential Kit Fragtags Parwise Essential Kit Fragtags Parwise Essential Kit Fragtags Parwise Essential Kit

    Seneye

    Fragtags Parwise Essential Kit

    Fragtags Parwise Essential Kit The Fragtags Parwise Essential Kit securely holds the light meter while taking readings throughout the tank without disturbing your coral and fish. Also includes a clip-on eye protector for traveling and storage. ITC...

    $27.99
  • Vivid Creative Salinity Probe Stability Kit Vivid Creative Salinity Probe Stability Kit Vivid Creative Salinity Probe Stability Kit

    VCA

    Vivid Creative Salinity Probe Stability Kit

    Vivid Creative Salinity Probe Stability Kit Kit Includes: Salinity Probe Stability Assembly 36in of 1/4in supply-line hose SICCE Micra compatible Pump adapter for 1/4in RO Line.    Important Installation notes Must be supplied constant 60 to...

    $27.95
🔥 SPRING SALE! 🔥