How to Set Eheim Fish Feeder? | Programming Steps & Tips

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Setting up an Eheim Everyday Fish Feeder requires installing two AA batteries, setting a 24-hour clock, programming up to four feeding times with rotation arrows, and adjusting the portion slider.

Learning how to set an Eheim fish feeder correctly is the difference between a tank that gets fed on schedule and one that silently misses meals. The Eheim Everyday Fish Feeder (model 3581), also sold as the Feed-Air Digital, holds roughly six weeks of dry food and can dispense up to four portions per day. But the setup has one non-obvious step that trips up most first-time users: you must assign rotation arrows to each feeding time, or nothing comes out. Here is exactly how to get it right the first time, plus the settings that matter most.

What You Need Before You Start

Gather these items before opening the battery compartment:

  • Two AA batteries (included with a new unit)
  • Dry fish food — flakes, pellets, sticks, or Krill. Crush large flakes so they fit through the slider.
  • A flat mounting surface or the included clamp, positioned so the drum hangs over the water’s edge

The Eheim Everyday Feeder works with freshwater and reef tanks. The standard model uses manual LCD programming; the autofeeder+ variant adds WLAN for smartphone control without a dedicated app.

Eheim Fish Feeder Setup: The Step Order That Works

The setup breaks into five steps. Follow them in this sequence and you will not have to redo any work.

Step 1: Install the Batteries

Press the locking clip on top of the housing and lift the cover. Insert two AA batteries following the polarity diagram inside the compartment. Snap the cover back on. The LCD screen lights up automatically when the batteries make contact — that is your cue that power is live.

Step 2: Set the Current Time

The feeder uses a 24-hour clock, so 6 PM is entered as 18:00. Press Set until the hour digits blink, press + to set the hour, press Mode to move to minutes, press + to set the minutes, then press Set to lock the time. If you set 6 instead of 18, the feeder dispenses at 6 AM instead of 6 PM.

Step 3: Program Your Feeding Times

Press Mode to select one of four feeding intervals (labeled 1 through 4 on the display). Press Set to make the hours blink, use + to set the hour, press Mode to advance to minutes, and use + to set the minutes. This next part is where most people lose a day of feeding: press Mode again until a flashing number appears. Press + to set the rotation count — one arrow equals one rotation, two arrows equals two rotations. Zero arrows means zero food. Press Set to save. Repeat for intervals 2 through 4 if you want multiple feedings.

Step 4: Fill the Drum and Adjust Portion Size

Remove the transparent drum from the motor. Slide the feeding gate closed before filling, or food spills out immediately. Fill with dry food up to the max marking inside the drum, then snap the drum cover back on. Reattach the drum to the motor. To increase the portion, slide the gate backward one notch at a time — further back releases more food per rotation.

Step 5: Test and Mount the Feeder

Press the Eheim button on top of the unit. The drum should rotate and drop a small amount of food. This is a manual test dispense and does not change your saved settings. Once it works, mount the feeder using the clamp or set it on a flat surface with the drum hanging over the tank rim.

Setting Value Notes
Model numbers 3581 (standard), 3583 (manual variant) Also sold as Feed-Air Digital; 3582 is a drum-only SKU
Drum capacity ~100 mL (3.3 fl oz) Holds roughly 6 weeks of flake or pellet food
Power Two AA batteries Low battery indicator on top cover; replace promptly when shown
Clock format 24-hour 6 PM = 18:00, midnight = 00:00
Maximum feedings per day 4 Each interval can have 0, 1, or 2 rotations
Food types Dry only — flakes, pellets, sticks, Krill Crush large flakes or they jam the slider
WLAN version autofeeder+ Smartphone, tablet, or computer control via home network; no app needed

How Do You Avoid The Most Common Setup Mistake?

The single most frequent error is programming a feeding time without assigning a rotation arrow. The display shows the interval time, but if the rotation count shows a zero and no arrow icon, the feeder will not dispense food at that time. It simply skips it. Always press Mode past the minutes until the flashing digit appears, then press + to set at least one arrow. The arrow icon on the screen confirms the feeder will actually rotate and drop food. This is the step that separates a working setup from one that silently fails for days.

Troubleshooting Common Setup Problems

Problem Most Likely Cause What to Do
Feeder does not dispense at the programmed time No rotation arrow assigned to that interval Press Mode until the flashing number appears, press + to add 1 or 2 arrows
Food spills out during filling Slider gate was open when food was added Slide the gate fully closed before pouring food into the drum
Large flakes jam the mechanism Flakes are too big for the slider gap Crush flakes between your fingers before adding them to the drum
Feeder dispenses at the wrong time of day 24-hour clock was set incorrectly (6 instead of 18) Reset the current time in Step 2; 6 PM must be entered as 18:00
Drum does not rotate when tested Batteries dead or drum not seated on the motor shaft Check the low battery indicator; remove and reseat the drum

If you are comparing which automatic feeder fits your tank setup best, our hands-on roundup of the best automatic feeders for fish covers top-rated models tested across different tank sizes and food types, including the Eheim Everyday and its competitors.

Five-Minute Setup Recap

Once you have done it twice, the whole process takes under five minutes. The short version: insert AA batteries, set the current time to 24-hour format, program each feeding interval with at least one rotation arrow, close the slider before filling the drum, and press the Eheim button to confirm the mechanism works. The rotation arrows are the only step that is easy to miss, and now you know exactly where they live in the menu. Your tank will stay fed on schedule whether you are at work or away for the weekend.

FAQs

Can the Eheim feeder handle pellet food, or only flakes?

Pellet food works fine as long as the pellets fit through the slider opening. Gammarus pellets, Krill, and small food sticks also work. Oversized pellets or large flakes must be crushed first or they will jam the mechanism.

Does the feeder remember settings when I change the batteries?

No, the Eheim Everyday Feeder does not have backup memory. When you remove the batteries, all programmed times and rotation settings are lost. You will need to re-enter the current time and all feeding intervals after a battery swap.

What is the difference between the standard model and the autofeeder+?

The standard model (3581) uses manual LCD buttons for all programming. The autofeeder+ adds a WLAN module that lets you control feedings from a smartphone, tablet, or computer through your home network, without installing a dedicated app. Both use the same 100 mL drum and stepper motor.

Can I mount this feeder on a glass tank with a rim?

Yes, the included clamp fits aquarium rims up to roughly 12 mm thick. Position the clamp so the drum hangs over the water surface. For rimless tanks, set the feeder on a flat surface next to the tank with the drum extended over the edge.

How do I know if the feeder actually dispensed food while I was away?

The LCD shows the last feeding interval number briefly after each dispense. You can also check the food level through the translucent drum. If the level has dropped and the top of the water has visible food particles, the feeder ran as programmed.

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