Apex Jr Controller - Neptune Systems

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Apex Jr Controller - Neptune Systems

86% Recommend this to a friend (30 of 35)

SKU: 207488
In Stock: 102
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Quick Overview

Why does BRS recommend this?

The Apex controller is by far one of the most advance dedicated aquarium controllers on the market today. The wide variety of controllability with the Apex controllers and their easy to use cloud interface makes it a perfect option for a fully automated reef tank. The seven module limit will cover most tanks that do not need every bell and whistle, but may want leak detection, salinity, or any other of the many modules that Neptune has available.

Great Entry Level Controller from Neptune Systems

  • Fusion Ready

  • Includes Apex Jr Controller, Apex Display Module, Long-life Temperature Probe

  • Basic functions: Light Control and Temperature Control at a great price point

  • Cool Features: Internet Connectivity, phone and text alerts, over temperature protection, mobile phone and tablet access

  • Apex User Manual

  • Apex Comprehensive Manual


Full Details

Quick Compare - Neptune Apex Controllers

ControllerPriceBase UnitKey FeaturesProbe(s)Energy Bar
Apex Jr

Apex Jr.

  • 4 Independently controlled outlets
  • Temperature Probe Port
  • 2 AquaBus Ports
  • Ethernet Port
  • Maximum Number of Modules: 7
  • Display Module
  • Easy to set up
  • Perfect low-cost heater/lighting controller
  • Expand up to 7 other Neptune Accessory Modules
  • Connects through LAN network

Long-life Temperature Probe:

  • Custom built by Neptune - specifically designed for long-term saltwater use


4-outlets built-in


Not compatible with EnergyBar 832

Apex with Lab Probe



  • 12V Power Port
  • 2 AquaBus Ports
  • Control Port
  • Ethernet Port
  • Temperature Probe Port
  • I/O Switch Input
  • pH Probe Port
  • pH/ORP Probe Port
  • 4 Variable 0-10V channels for LED Dimming or Tunze Pumps
  • Maximum Number of Modules: 240
  • Uses the AquaBus connection system from module to module
  • Includes pH Probe
  • Includes Display Module
  • Expandable for endless options
  • Connects through LAN network

Long-life Temperature Probe:

  • Custom built by Neptune - specifically designed for long-term saltwater use


Lab Grade pH Probe:

  • Longer lasting than Standard Probes
  • More accurate results
  • Stay calibrated longer
  • Replace less frequently

Energy Bar 8

8 Independently Controlled Outlets 6 rated at 5A@120V AC 2 rated at 10A@120V AC


Not compatible with EnergyBar 832

Apex Controller System



  • WiFi Enabled
  • 12V Power Port
  • 2 AquaBus Ports
  • Control Port
  • Ethernet Port
  • Temperature Probe Port
  • I/O Switch Input
  • pH Probe Port
  • pH/ORP Probe Port
  • Salinity Probe Port
  • 4 Variable 0-10V channels for LED Dimming or Tunze Pumps
  • Maximum Number of Modules: 240
  • Includes Salinity Probe
  • Includes pH Probe
  • Includes Temp Probe
  • Uses the AquaBus connection system from module to module
  • Save outlets with the Energy Bar 832
  • Connects through WiFi or LAN network
  • Redesigned Heat Unit
  • Compatible with all Neptune Acessories

Long-life Temperature Probe:

  • Custom built by Neptune - specifically designed for long-term saltwater use

Lab Grade Conductivity Probe:

  • Holds calibration longer
  • Standardized Body
  • Accurate and Dependable
  • Designed for Fresh and Saltwater

Lab Grade pH Probe:

  • Longer lasting than Standard Probes
  • More accurate results
  • Stay calibrated longer
  • Replace less frequently

Energy Bar 832

  • 8 Independently Controlled rated at 7A@120V AC
  • 3 1Link Ports
  • 3 Aquabus Ports
  • 2 24V accessory ports


Note: Smart Phone and Tablet not included.


Items 1 to 12 of 35 total

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  • Really enjoying this! By Noel on 9/5/2017

    I'm getting back into the hobby after about 15 years away, and there was nothing like this last time around. Mostly, the Apex is giving me peace of mind, especially when I'm away for the weekend. I've added three additional modules for extra outlets (EB8), light control (VDM), and pH monitoring (PM1) which I really bought so I could add a Breakout Box. So far, so good. Everything seems to be working well, and being able to check in from the web has been really nice.

    I did hard wire mine to the network in my house rather than buy another piece of equipment to connect it wirelessly. I think this was a really good idea in retrospect. I've had virtually no connection issues that others have sometimes encountered when connected with wireless.
  • Apex jr By Scott on 8/21/2017

    Just hooked up and already found major temp difference. Easy to set up. Need pH unit to do alkalinity dosing more accurately so I wish I would have bought the controller with it.
  • Poor customer service By Thomas on 8/21/2017

    So I bought the Apex jr and had it 3 months. Installed it with only the probe inside the stand. Ran for 2 weeks and went down. Sent it to Apex after 2 weeks of back and forth communication. Was told 3 weeks later it has water damage. Hard to have water damage if never within 4 feet of water. So going to cost $120 repair a $238 part. Good that i went to another brand.
  • Great entry level controller packed with a lot of features By reefingwith0 on 6/26/2017

    I purchased this to use on a smaller tank. I'm an Apex fan and I have another Apex running on another tank. I use an apple airport express to connect it wirelessly to my airport extreme and home network and it's been running flawlessly since day 1.

    The apex has really lowered the barrier of entry for keeping tanks. Now my wife and son can monitor and make changes to the tank without going in a cabinet and unplugging anything.

    Programming is easier and the tasks now make it easy for a non-technical person to get started without feeling overwhelmed.

  • Great Controller at a Great Value By chris on 6/8/2017

    I have both the full Apex and an Apex Jr. The Apex Jr runs my AWC system and salt water mixing area which are located in my garage. They are very easy to program, there is a great forum for support and ideas through Neptune, and Neptune's support has been great over the years. For smaller systems or special projects like what I use this for its a must have item.
  • apex jr By tuba tub on 5/30/2017

    love this product , great piece of mind knowing i have a smart toy looking after m tank.
  • Neptune Support Ugh!!! By BobD on 2/27/2017

    Setting up my tank which had been down for about 8 years. I am amazed at the new technologies out there. Love the BulkReef site and the numerous helpful videos and when on their recommendation for the Apex JR. I received the unit and plugged it in. Everything seemed pretty simple. It came on and I was able to configure it for the temp probe and add it to their cloud. I was pretty happy. I noticed the time was off, I reset the time and restarted it and that is when everything went on me. Initially when it came back on the display was lit with nothing on it. I let it set for a while, never changed. I unplugged and plugged it back in and same result. I then opened a ticket with Neptune via the web. Later that day I noticed the display had come back. I updated my ticket with Neptune. I then unplugged it and plugged it back in and it didn't come back at all. The status light was steady orange and the display wasn't even back lit. I could see it wasn't connecting to my network. It appeared dead in the water. I tried unplugging it in and plugging it back in a few times, same result. I updated my ticket with Neptune. It was as if they didn't read what I wrote. They kept saying they wanted to schedule a time so they could login to the APEX JR. I told them that wouldn't be possible. I then called Bulk Reef to ask for help. They said to call them direct and gave me their number (same as Neptune webpage). I tried calling 5-6 times throughout that day and no one ever picked up the phone. At this point I called back Bulk Reef and said I wanted to return it. They said they would get it and it would take a couple days for them to determine the issue and fix or replace. I told them I wanted to return for refund and they sent me RMA number, no UPS sticker. I paid to return it myself ($14.00) and sent them a complaint email on costing me to return a defective product. They then sent me a tag for UPS which unfortunately was too late. Bulk Reef promptly refunded me when they received the APEX JR. I also am returning the unopened PH module I had bought since I don't have the APEX to use it with. The only issue I have with Bulk Reef is having this on their recommended list. In reading reviews of Neptune, I am not the only one that has had the support issue. I did eventually receive and email from Neptune saying they had power issues and the phones weren't working, judging by the reviews, this must be a common occurrence. Again, my issue isn't with Bulk Reef but with Neptune.
  • I love my Apex Jr. By Doc on 12/29/2016

    Initially I purchased a Reefkeeper Lite to run a Finnex 800 watt heater on a 180 gallon mixed reef with a 75 gallon sump. (It was on sale.) That worked great for about a week until it failed and my tank went up 4 degrees before I caught the malfunction. I returned the Reefkeeper and purchased the Apex Jr. Wow!!! What a great purchase. I have the Apex hard wired into a router and I can check my tank or change parameters from anywhere on my cell phone. I am a dinosaur when it comes to computer stuff. Trust me you can work with this. There is an easy level for guys like me and I understand a geek mode for the more sophisticated. My temp hasn't varied more than 1/2 degree in weeks. Now I realize I could have avoided purchasing the MP 40 controller the Kessil controller and 3 timers. I wish I had purchased this years ago. I will probably upgrade and have an Apex control everything in the near future.
  • Must Have Money Saver By Cave Man on 4/11/2016

    This is a great product that is fun to use and will give you peace of mind. It does take a little while to setup but is worth it. I have not hooked a camera up to it yet but I hear it is rather difficult to do. It is perfect for controlling my lights, heaters, and pumps. You will end up spending this kind of money in the hobby. I would recommend stepping up and getting this right from the start. It will save your tank!
  • Almost too user friendly By Michael on 3/29/2016

    Just received and set up the apex on my new RR 150 and it was very simple if you know how to read. I while playing with the settings and outlets I found that I am accustomed to less user friendly equipment and repeatedly struggled to accept that it was so simple. Anyways, only gave it 4 stars cause for the a little difference in price I could have bought the competitors controller and received a ph modual as well. Good controller so far.
  • great controller By drsalomon on 2/24/2016

    I have 2 apex jr and an apex lite. Jr are great for standalone biocube size tanks. You can control 2 dosing pumps, and a heater plus one to spare. The latest firmware updates max modules from 4 to 7 making it even more useful. Beware firmware updating beyond the 1 year warranty for the ORIGINAL owner is risky. If the firmware update fails and the controller bricks, you will not get a replacement of the unit from apex even though their firmware update caused the problem. Happened to me once on a pm1 module and I was not happy with this.
  • Excellent product! By Sang on 11/25/2015

    This is my second Apex (I have a full one as well) and it's been rock solid on my nano tank. Neptune products just work. Thanks BRS!


Ask a question

Product Questions

How do I connect several modules to the Apex jr.? There are only 2 usb ports in the power unit - one for the display and one for a module. Do I need a splitter or do I add the additional modules in series?
Question by: Anja on Jul 27, 2016 10:54:00 AM
Hi there,
The Apex Modules will be connected in a daisy chain style (series). Every module will have two aquabus ports letting you connect it to an existing module, and then an open port to connect another module. Modules can connect anywhere in the series and be able to send its information up to the head unit for processing.
Thanks for the question, and if you have any more let us know!
Answer by: Charlie (Admin) on Jul 27, 2016 1:36:00 PM
Can the Dissolved Oxygen Module PM3 be used with the Apex Jr?
Question by: Kelley on Apr 25, 2016 8:03:00 PM
Great question!
The PM3 will work fine with the Apex Jr. Keep in mind the Jr. will only be able to runn4 modules total. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Apr 26, 2016 5:38:00 PM
I'm wanting to set up a controller that will turn on a fan if the temperature reaches say 79 degrees and turn it back off if it gets down to 77. Is that something this controller would do?
Question by: Michael Burch on May 27, 2017 11:58:00 PM
The Apex system has controllable outlets that can be programmed based on a number of sensor inputs, including temperature. You can easily plug a fan into one of these outlets and then program it to run much like a chiller with set on and off temp points.

Happy reefing!
Answer by: Zack (Admin) on Jun 5, 2017 3:43:00 PM
Can the Apex Jr. control vortech mp40, such as changing mode?
Question by: Bob on Dec 30, 2016 7:13:00 AM
Great question! It can, however you will need this module in order to do so. :-)

Answer by: Randy (Admin) on Jan 9, 2017 10:25:00 AM
Can I use this to make my wave maker run more slowly/gently? The one I have for my nano tank is too strong. Also, can I use an Android tablet as a dedicated control screen?
Question by: Susan on Nov 19, 2016 1:24:00 PM
No answers yet. Be the first to answer the question!
How long is the power cord for the Apex Jr?
Question by: Mike Strong on May 25, 2016 9:57:00 AM
The power cable for the Energy bar is 6 feet long.
Answer by: Connor (Admin) on May 25, 2016 4:20:00 PM
Will the basic Apex JR setup control a MaxSpect Gyre pump or do you need anything else (other than the icecap)?
Question by: Morgan on Apr 4, 2016 9:43:00 AM
Great question!
Unfortunately the Jr. will not have the Variable voltage ports and the VDM module will be required to connect to the ice cap. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Apr 6, 2016 6:59:00 PM
How do you connect the Apex Jr to the internet? Ethernet to pc or router?
Question by: Eddy on Nov 20, 2016 1:43:00 PM
Great question! You will need to plug the Apex directly into the router via Ethernet cable. :-)
Answer by: Randy (Admin) on Nov 21, 2016 6:47:00 PM
I'm planning on buying an aquarium controller for my reef tank. My main priorities are temp control and programming a solenoid valve for my RODI them having the data/alerts sent to me via email. After looking over all the controllers I have decided to buy an Apex JR, SV-1 solenoid valve and a pH/ORP Probe Module: PM1. Can you please confirm the PM1 will be able to control the SV-1 and if not what is the cheapest module that will?
Question by: Ken on Jun 3, 2017 1:31:00 AM
If you are planning to have the solenoid control RODI output for auto top off, you will also need a way to monitor your water level, either through the use of a float switch, or optical sensors. The solenoid itself will have to be plugged into a powered 1Link accessory port which has a 24v power supply. This can be done with a 1Link module and power supply, FMM module and power supply, or with an EB832 power bar (full Apex system only).

Answer by: Zack (Admin) on Jun 8, 2017 5:00:00 PM
If you purchase the Apex Jr, can you add module later. Like a PH probe.
Question by: David on Mar 30, 2014 12:06:00 AM
Hi David,
The Jr can handle a maximum of up to 5 modules. You can mix and match them however you like (eb 8's, PM1's, etc) as long as you don't exceed a total of 5.
Answer by: Bulk Reef Supply on Mar 30, 2014 12:06:00 AM
Can you use the 8 outlet module with this controller
Question by: Tyler on Jan 28, 2015 4:17:00 AM
Great Question Tyler!
The Energy Bar 8 is compatible with the Apex Jr.
Answer by: Bulk Reef Supply on Jan 28, 2015 4:17:00 AM
Would I be able to add a PH probe, Led & Pumps controller, Lunar Simulator LSM & Lunar LED string, 1 Tunze 6095 pump and a JBJ nano glow refugium light and be able to control them all with the Apex Jr?
Question by: William on Apr 5, 2014 12:11:00 PM
Hey William,
The Apex Jr is expandable to add up to a total of 5 modules. You can add individual modules to add the functionality to do everything you mention, but if your going to do that it really doesn't make any sense at all to order an Apex Jr because buying all of the individual modules will cost more then the standard Apex system does. Much of that functionality (Tunze control, LED control, pH probe) is already built into the standard apex unit (though you would still need the lunar module). Buying all those extra modules and probes costs more then just buying the standard apex. It also doesn't have the 5 module limit so it would be much more expandable into the future as well.
Answer by: Bulk Reef Supply on Apr 5, 2014 12:11:00 PM
Can I control both Kessil 360w with the Apex Jr? Must I use 2 outlet (1 for each) or can I plug both 360W into 1 outlet?
Question by: Norm on Jul 25, 2014 12:10:00 AM
Hi Norm,
The Kessil requires two channels of control. One channel for the power level and one channel for the color. A single VDM port on an Apex actually controls two channels, so only 1 VDM port will be required to control a single Kessil. Multiple Kessil's can be daisy chained together so you can control multiple units from that single VDM port.
Answer by: Bulk Reef Supply on Jul 25, 2014 12:10:00 AM
Can you use an Energy Bar 8 with the Jr?
Question by: Jeremy on Feb 28, 2014 4:59:00 AM
Hey Jeremy,
Thats not a problem at all. The Jr. can use any of the modules including the EB8 it just has an 5 module maximum.
Answer by: Bulk Reef Supply on Feb 28, 2014 4:59:00 AM
Can the led module be hooked up to this? Also can it be connected to the internet wirelessly? I don't have an Ethernet plug in close to my tank.
Question by: Riley on Dec 9, 2013 4:59:00 PM
Hi Riley,
You can connect any of the other neptune apex modules to the Jr. so long as you don't exceed the 5 module maximum.

You do need to plug the controller in with a physical ethernet cable though you could use a wireless bridge or gaming adapter on the other end of that cable to wirelessly connect to a wifi network.
Answer by: Bulk Reef Supply on Dec 9, 2013 4:59:00 PM