Neptune Systems

AFS Automatic Feeding System

In stock

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Add even more convenience to your Apex Controller with the AFS Automatic Feeding System from Neptune Systems. Automate your feedings while you are away on vacation or if just want to remove this from your daily routine, the AFS can feed your tank inhabitants once a day or multiple times a day. Daisy-chain two AFS feeders together to feed two different foods or just increase the storage for those long vacations.



  • Stay dry system - keeps food dry to avoid clumping
  • Works with pellet or flake fish and coral food
  • Build complex feeding routines
  • Compatible with A3 Apex (Apex Jr., Apex, & Apex Pro)
  • Also compatible with legacy A1 & A2 Apex models such as Apex Classic or Apex EL


  • Dimensions: 6.25" (accounting for AquaBus plug) x 3" x 3.75"
  • Holds up to 100mL of most pellet and flake foods

What's in the Box

  • AFS System
  • Adjustable clips that extend to almost 2"
  • Hook and loop tape
  • 15 Ft AquaBus Cable
  • Sample of Neptune Crossover Diet Pellet Fish Food
More Information
UPC 696859111334
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Product Questions

I purchased the feeder but can’t location the power supply. Does the USB port power it or does it need a 6V DC plug?
Question by: Nate on Mar 26, 2023, 9:33 AM
Thanks for the question! This device is powered via the AquaBus cable when it is connected to the Apex system. There is no stand alone power supply for the AFS as it does require an Apex for power and control.
Answer by: Kyle Thomas (BRS Staff) on May 3, 2023, 4:14 PM
How far does the drum extend out while feeding?
Question by: Paul on Mar 9, 2020, 4:26 PM
Hey there,

The hopper will extend 1.5" from the body.

Take care
Answer by: Thomas Billington on Mar 10, 2020, 11:24 AM
Can this feeder hold small pellets and would it be good for two weeks?
Question by: Chad on Jan 5, 2018, 5:15 PM
Thanks for contacting BRS!
Yes, this product would how small pellets. Depending on how much you feed, a full drum should last you 2 weeks if not more. Have a great day!
Answer by: Josh Cuta on Jan 11, 2018, 12:32 PM
Are these compatible with the new apex system?
Question by: stepgen W on Nov 18, 2017, 11:16 PM
These will work perfectly with the new Apex controller as well as the classic line.

Happy reefing!
Answer by: Zack on Nov 25, 2017, 8:37 AM
From where this mounts on the top of the tank, how far out does the feeder come into the tank to release the food? Making a lid, and want to make sure I have enough clearance, so the food drops into the water. Thanks
Question by: Dan on Sep 12, 2017, 6:33 AM
The hopper will come out about 1.5” from the body of the AFS unit.
Answer by: Charlie on Sep 13, 2017, 2:07 PM
Can I use whit Red Sea max 250 whit clip become the edge is not flat
Question by: Armando on Jun 4, 2017, 1:13 PM
The adjustable tank mount expands to nearly two inches, so it can accommodate a wide variety of aquarium rims. You should be just fine on your tank so long as you have a good open spot over which to mount on your tank.

Happy reefing!
Answer by: Zack on Jun 9, 2017, 3:35 PM
What is the volume of food that can be held in the unit?
Question by: Flagg37 on Jun 15, 2016, 10:50 PM
Great question!
This will hold just over 100mL of food. Feel free to let us know if you have any further questions!
Answer by: Connor on Jun 16, 2016, 11:30 AM
I actually have two questions.

1. I see there is a clamp for mounting the feeder on the tank. Will this clamp work on rimmed tanks?

2. How would the installation work if you have a glass top or screen on your aquarium?
Question by: Joel on Jan 25, 2016, 3:00 PM
Great question!
The clamp can work on rims up to 2" thick without issue. If there is a glass top the feeder of course will not work however with a screen top you can cut a section for feeding or if the holes are large enough allow the food to fall through. Feel free to let us know if you have any further questions!
Answer by: Connor on Feb 3, 2016, 12:24 PM
I have the Apex Jr. and I am aware of its 5 module limit. Does the AFS count towards my module limit?
Question by: Jordo on Aug 19, 2014, 7:15 AM
Hi Jordo,

Any module plugged into the Apex counts towards the limit of 5. This counts the display and expansion outlets like the EB4 and EB8 as well. If you are maxed out at 4 modules you can always stop using the display unit and use your phone or computer to control the Apex to open up a spot for one more module.

Hope this helps.
Have a great day :)
Answer by: Bulk Reef Supply on Aug 19, 2014, 7:15 AM
Hello,I have the apex lite,if I buy this apex AFS feeding system,what else do I need to buy to make it work ? Or is it a plug and play ? Thank you kevin
Question by: Kevin on Jul 31, 2014, 4:56 AM
Hi Kevin,
If you already have an Apex system all you need is the AFS system :)
Answer by: Bulk Reef Supply on Jul 31, 2014, 4:56 AM
Can this feeder be programed by itself without the apex. I plan on buying the apex soon I just need an auto feeder sooner than I have the funds for the apex.
Question by: Jimbo on May 8, 2014, 4:49 PM
Hi Jimbo,
It cannot, it requires the Apex system in order to operate.
Answer by: Bulk Reef Supply on May 8, 2014, 4:49 PM