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  • Aquariums
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  • Additives
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  • Controllers & Monitors
  • Coral
  • Dosing
  • Food & Nutrition
  • Heating & Cooling
  • Lighting
  • Maintenance
  • Overflows
  • Protein Skimmers
  • Pumps & Powerheads
  • RO/DI
  • Sumps & Filter Socks
  • Testing Equipment
  • UV Sterilizers

    • Shop by Brand

  • Seachem
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    • Controllers & Monitors

    • Trident & Apex Controller System Bundle
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      Trident & Apex Controller System Bundle

      Control and Monitor your Aquarium with the Dream Neptune Apex Controller System! Everything from programmable outlets to fish feeding, fully automated dosing control, along with flow and leak detection functionality. The Neptune Apex Dream Bundle is...

      $1,399.99
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    • Trident & Apex EL Controller System Bundle
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      Trident & Apex EL Controller System Bundle

      Start your aquarium with the proper control system! Fully automate your aquarium with the ApexEL Controller System, and while you are at it ensure your aquariums calcium, alkalinity, and magnesium levels are always perfectly stable with the Neptune...

      $1,099.99
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    • Neptune Systems Apex Controller with WIFI Neptune Systems Apex Controller with WIFI
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      Neptune Systems Apex Controller with WIFI

      A GREAT AQUARIUM JUST GOT EASIER. Tell someone you own a saltwater aquarium you will usually hear this:   “Aren’t those things hard to take care of ?” or “I had one once and everything died when…”   Sadly,...

      $799.99
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    • Neptune ApexEL Controller Neptune ApexEL Controller
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      Neptune ApexEL Controller

      The real pleasures of an aquarium are often overshadowed by the struggle of upkeep. Worse yet, aquatic animals are unnecessarily sacrificed everyday when parameters like temperature drift into lethal ranges due to failed equipment or other mishaps. A...

      $499.99
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    • Neptune Systems Apex Base Unit Neptune Systems Apex Base Unit
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      Neptune Systems Apex Base Unit

      This Apex Base Unit is fully compatible with all Apex modules and accessories including the Energy Bar 8 and Energy Bar 4. All of the calibration solutions for pH and salinity will also be included with the Apex Base Unit.   ENTER THE APEX  ...

      $399.99
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    • Neptune Energy Bar 832
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      Neptune Energy Bar 832

      Please Note: The New EB 832 is not compatible with the classic Apex or Apex Jr systems.   ENERGY BAR 832 – THE ULTIMATE POWER CONTROL HUB   This Energy Bar 832 was redesigned from the ground up.  Not only does it have eight 120V AC...

      $379.95
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    • EnergyBar 8
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      EnergyBar 8

      The EnergyBar 8 module features 8 independently controllable outlets. With power failure detection, active electrical current monitoring, and failsafe features make this power bar far better than any competing units.8 independently controllable 120V...

      $159.99
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    • Neptune Systems LDK - Leak Detection Kit
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      Neptune Systems LDK - Leak Detection Kit

      Neptune Systems LDK - Leak Detection KitDetects leaks on contactInstantly alerts you via your mobile deviceMonitor for leaks in up to four locationsIncludes two leak detection probesRemaining two ports can be used for more leak detection probes or other...

      $149.99
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    • Neptune 1Link Module Neptune 1Link Module
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      Neptune 1Link Module

      1LINK – EASY, ONE-CLICK INSTALLATION   The WAV is the first of a line of aquarium products from Neptune Systems that will use a completely new interface. While many in the aquarium world continue to embrace wireless technologies for...

      $149.99
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    • EnergyBar 4
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      EnergyBar 4

      EnergyBar 4 FeaturesThe EnergyBar 4 module features 4 independently controllable outlets. With power failure detection, active electrical current monitoring, and failsafe features make this power bar far better than any competing units.4 independently...

      $119.99
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    • Neptune Trident Six-Month Reagent Kit Neptune Trident Six-Month Reagent Kit
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      Neptune Trident Six-Month Reagent Kit

      Neptune Systems recommends keeping on hand no more Trident reagent than you might expect to consume within the next 12 months.    6-month reagent kit (based on the default testing schedule of 4-Alk/2-Ca/2-Mg per day)...

      $99.99
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    • Neptune AFS - Automatic Feeding System Neptune AFS - Automatic Feeding System
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      Neptune AFS - Automatic Feeding System

      Feed your fish consistently, and safely, while you are home OR away!A key component of caring for aquatic animals is regularly providing them with food, but in amounts that get consumed immediately so as not to pollute the aquarium. On top of that, most...

      $99.99
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    • Neptune PM2 Salinity Module
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      Neptune PM2 Salinity Module

      The PM2 salinity module, includes support for conductivity (salinity), temperature, and 6 digital inputs. The PM2 features are:    Monitor/Control Conductivity and temperature.   6 digital inputs for float switches, water on floor...

      $84.99
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    • pH or orp, temperature, and 6 digital inputs
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      pH or orp, temperature, and 6 digital inputs

      The first expansion module, the PM1, with a pH or ORP, temperature, and 6 digital inputs. The PM1 features are:Monitor/Control pH or ORP, and temperature.6 digital inputs for float switches, water on floor sensors, pressure sensors, etcFull datalogging...

      $84.99
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    • Neptune Double Junction Lab Grade ORP Probe
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      Neptune Double Junction Lab Grade ORP Probe

      The pH and ORP probes are now double-junction as well so they hold calibration longer and have a longer lifespan than single-junction probes.   What's the difference between double junction and single junction probes? Single junction probes put the...

      $84.99
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    • Neptune Double Junction Lab Grade pH Probe Neptune Double Junction Lab Grade pH Probe
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      Neptune Double Junction Lab Grade pH Probe

      The pH and ORP probes are now double-junction as well so they hold calibration longer and have a longer lifespan than single-junction probes.   What's the difference between double junction and single junction probes? Single junction probes put the...

      $74.99
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    • Neptune Lunar Simulator Module
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      Neptune Lunar Simulator Module

      Lunar Simulator Module :: LSMWant to more accurately simulate the natural environment for your tank inhabitants?Moonlight in the ocean is believed to be as significant as the time spent in full daylight. Moonlight triggers various internal and external...

      $64.99
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    • Neptune Lunar Simulator LEDs (5)
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      Neptune Lunar Simulator LEDs (5)

      Lunar LED String – 5 LEDsUse this string of LED in combination with your Lunar Simulation ModuleWhen you purchase our Lunar Simulation Module you need to outfit it with a string of Lunar LEDs. This string of LED easily mounts to the inside of your...

      $59.99
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    • Neptune Lunar Simulator LEDs (4)
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      Neptune Lunar Simulator LEDs (4)

      Lunar LED String – 4 LEDsUse this string of LEDs in combination with your Lunar Simulation ModuleWhen you purchase our Lunar Simulation Module you need to outfit it with a string of Lunar LEDs. This string of LED easily mounts to the inside of your...

      $49.99
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    • Neptune Trident Two-Month Reagent Kit Neptune Trident Two-Month Reagent Kit
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      Neptune Trident Two-Month Reagent Kit

      Neptune Systems recommends keeping on hand no more Trident reagent than you might expect to consume within the next 12 months.    2-month reagent kit (based on the default testing schedule of 4-Alk/2-Ca/2-Mg per day).  The reagent kit has...

      $44.99
      Add to Cart
    • Neptune Lunar Simulator LEDs (3)
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      Neptune Lunar Simulator LEDs (3)

      Lunar LED String – 3 LEDsUse this string of LED in combination with your Lunar Simulation Module When you purchase our Lunar Simulation Module you need to outfit it with a string of Lunar LEDs. This string of LED easily mounts to the inside of your...

      $39.99
      Add to Cart
    • Neptune Magnetic Probe Rack Neptune Magnetic Probe Rack
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      Neptune Magnetic Probe Rack

      The 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, pH probe, ORP probe, and salinity...

      $39.99
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    • Neptune I/O Breakout Box
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      Neptune I/O Breakout Box

      Breakout Box Connect external switches and I/O Inputs to your Apex When connected to the I/O Port of your Apex, Apex Lite, or PMx module, the Breakout Box gives you an easy way to connect up to six external switch inputs to your Apex. Examples of things...

      $39.99
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    • Neptune Lunar Simulator LEDs (2)
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      Neptune Lunar Simulator LEDs (2)

      Lunar LED String – 2 LEDsUse this string of LED in combination with your Lunar Simulation ModuleWhen you purchase our Lunar Simulation Module you need to outfit it with a string of Lunar LEDs. This string of LED easily mounts to the inside of your...

      $29.99
      Add to Cart
    • Neptune Systems Solenoid Valve
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      Neptune Systems Solenoid Valve

      Solenoid Valve (SV-1)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 found on the FMM,...

      $29.99
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    • Neptune Systems 24VDC 36w Power Supply
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      Neptune Systems 24VDC 36w Power Supply

      Power Supply – 24VDC 36W (PS-36-US)This 24VDC, 36W power supply is used with the FMM so that you can attach the powered accessories above like the PMUP or the Solenoid Valve. This power supply is for 110V USA-style  outlets.

      $29.99
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    • Neptune Aquabus 30' Extension (M/F)
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      Neptune Aquabus 30' Extension (M/F)

      Aquabus 30′ Extension CableThis is a thirty foot Male/Female Aquabus cable that is used as an extension cable to connect Neptune Systems’ products over great distances. So if you have the aquarium in your basement and your other aquarium in...

      $29.99
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    • Neptune Systems Aquabus Cable - 30' M/M
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      Neptune Systems Aquabus Cable - 30' M/M

      Neptune Systems Aquabus Cable - 30' M/M AQUABUS CABLESWHAT ARE THEY?Aquabus is the communication link between your Apex and most of our modules.  The cable itself looks just like a USB cable, but it is not to be confused with a USB cable. ...

      $29.99
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    • Neptune Systems Optical Sensor
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      Neptune Systems Optical Sensor

      Optical Level Sensor  (OS-1)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 (auto-top-off),...

      $24.99
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    • Neptune 1LINK Male Cable - 10'
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      Neptune 1LINK Male Cable - 10'

      This cable is the 4-pin male to male cable many of you have been waiting for. It is ten feet long. This cable allows you to connect your DŌS to the 1LINK thereby eliminating the need for the DŌS to be connected to a power supply brick or the AquaBus...

      $19.99
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    • Neptune DC24 to Bare Wire Cable - 10'
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      Neptune DC24 to Bare Wire Cable - 10'

      This cable connects to the 24VDC accessory connections on the 1LINK. This cable has two bare (tinned) wires on the other end so you could connect it up to a 24VDC device of your choosing so long as it draws no more than 35W. Examples might include a...

      $17.99
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    • Apex 2 Channel Apex to Light Dimming Cable
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      Apex 2 Channel Apex to Light Dimming Cable

      2 Channel light dimming cable for Apex variable speed ports. It has 1 RJ45 connector on one end of the cable which plugs into the Apex base unit. The other end of the 6' cables have bare wires which connect to 0-10V dimmable ballasts.

      $14.99
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