Sump Automation
DIY Guide

Hidden Auto Feeder

Integrating an Auto Feeder into Your Sump.

System Protocol: Hiding your feeding gear keeps the main display pristine while ensuring heavy, consistent feeding for maximum vitality. This method is utilized on our primary display tanks.

Say goodbye to unsightly feeders suction-cupped to your tank rim. Hiding the feeder in your sump keeps your display tank pristine while maximizing how effectively food is delivered to your system.


1. The Benefits of Sump Integration

Dispensing food directly into the return pump chamber provides several major advantages over top-of-tank mounting:

Multi-Tank
If you have multiple display tanks plumbed into a single return system, this setup feeds all of them simultaneously from one central unit.
Dispersal
Food dispensed into the return pump gets immediately mixed into the water column, ensuring it is saturated and dispersed evenly throughout your display.
Pre-Mixing
For dry foods, the turbulence of the return chamber pre-saturates the food, reducing floaters and making it more digestible.

2. Installation Procedure

The goal is to direct the auto feeder's output directly into Your Sump's intake, ensuring the food is immediately pulled into the display.

Step 1: Plan Your Placement

Identify the best location for your Avast Marine Plank over the return pump chamber. Ensure the dispensing spout can drop food directly into the intake flow while remaining accessible for future refills.

Step 2: Modify the Output Plumbing

To get the output precisely where you want it, you will likely need to extend the default 2" PVC pipe provided with the Plank. Carefully measure and dry-fit your extension before cementing.

Original Output Pipe
Initial Setup (Too Short)
Extended Output Pipe
Modified Extension

Step 3: Add a Mixing Pump (Optional)

Place a separate, small mixing pump in the return chamber. Position it to create significant water agitation exactly where the food dispenses. This turbulence ensures dry foods are thoroughly saturated before entering the main pump block.


3. Programming the Timers

Using a smart power strip like the Kasa system allows you to control both your feeder and your mixing pump with minute-by-minute accuracy via an app.

The Schedule Logic

Mixing Pump Schedule

11:55 AM: Turn ON (5 minutes before feed) 02:00 PM: Turn OFF (2 hours after feed)

Auto Feeder Schedule

12:00 PM: Plank runs for exactly 1 minute

*Caution: Be careful with freeze-dried foods as they expand rapidly. I highly recommend swapping to high-density sinking pellets.


4. Final Tips for Success

  • Test Thoroughly: Manually trigger the schedule and observe if the food dispenses correctly and disperses well in your tank before relying on the automation.
  • Start Small: Begin with a smaller amount of food and carefully monitor your fish's consumption and water parameters.
  • Manual Feeds: Automated feeding is great for consistency, but do not forget the value of manual feeding for variety and visual health inspections.

Keep the Display Pristine

We utilize hidden equipment strategies to keep our aquariums looking clean and natural while maximizing biological stability. Explore the shop to see the corals we grow out in our dedicated nursery systems.

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