Auto Feeding Aquarium

Auto feeding aquariums are a boon for aquarists, especially those often away from home. They ensure that your fish are fed regularly, maintaining their health and well-being. This guide aims to provide you with a detailed understanding of auto feeding aquariums, their types, benefits, and drawbacks. We’ll also delve into some of the best products available. So please sit back, relax, and let’s dive right in!

What is Auto Feeding in Aquariums?

Auto feeding in aquariums refers to automated devices dispensing food into the tank at pre-set intervals. These nifty little devices can be programmed to release specific amounts of food at scheduled times, making it easier to manage your aquarium even when you’re not around.

Gone are the days when you’d have to hassle your neighbor to come over and feed your fish twice a day! You can leave your aquarium inhabitants well-fed and content with an auto feeder for days. Some advanced automatic fish feeder models even allow you to control them remotely via smartphone apps. How cool is that?

How Do Auto Feeders Work?

Most automatic fish feeders work through a simple mechanism. They are usually battery-operated or electrically powered. The device consists of:

  • A container to hold the fish food
  • A discharge mechanism to release the food
  • A programmable timer to schedule feeding times

Based on the timer settings, the discharge mechanism rotates over the food container at fixed intervals, scooping up and dropping a predetermined amount of food into the aquarium. This ensures your fish get fed consistently.

Some feeders have different compartments to hold different types of food like flakes, pellets, etc. The amounts dispensed can also be tweaked as per your requirements. Advanced WiFi-enabled models can even be controlled via a smartphone app for the ultimate convenience.

Types of Auto Feeders

There are several types of automatic fish feeders available in the market today. Let’s look at some of the most popular options:

Automatic Fish Feeder for Flakes

As the name suggests, these feeders are designed to dispense flake food commonly used to feed small freshwater fish like goldfish, bettas, guppies, etc. The hopper is made wide and shallow to accommodate the flakes properly. These are great for smaller home aquariums.

Automatic Fish Feeder for Pellets

Pellets are popular for feeding slightly larger tropical fish and saltwater species. Pellet feeders have a deeper hopper and adjustable feeding settings for different pellet sizes. Rotating drum models are quite effective for pellet distribution.

Automatic Fish Feeder for Ponds

Heavy-duty automatic feeders are required since pond fish tanks are much larger than indoor aquariums. Pond fish feeders are larger, more robust and weatherproof to withstand outdoor conditions. Capacity can range from 5 lbs to a whopping 50 lbs of food.

Automatic Fish Feeder for Small Tanks

Nano aquariums that are 10 gallons or less require compact auto feeders. These tiny feeders take up minimal space and blend seamlessly into a desktop tank setup. Small rotation drums accurately dispense tiny portions for a nano tank.

DIY Automatic Fish Feeders

For hobbyists who love DIY projects, it’s possible to create homemade auto feeders using easily available supplies. 3D printed designs allow you to customize feeders to suit your tank’s needs. DIY feeders can be a fun weekend project for the tinkering aquarist.

Benefits of Using an Auto Feeder

Convinced it’s time to get an automatic fish feeder yet? Here are some compelling benefits that make auto feeders a worthy investment:


This is easily the biggest motivator for aquarium owners to get an auto feeder. No more rushing home to feed your fish or disrupting your vacation to ask someone to feed them twice a day! Program it once and your fish will be fed for days without any effort on your part.

Consistent Feeding

An automatic feeder ensures your fish get fed at the same times daily. This consistency is great for the health and metabolism of fish. In the wild, fish naturally foraged for food at particular times based on light, tides, etc. An auto feeder mimics this periodicity.

Controlled Portions

One of the major risks of vacations is either overfeeding or underfeeding by whoever is helping to feed your fish. An automatic fish feeder takes the guesswork out of how much to feed. Dispensing precise amounts prevents overfeeding, contamination or starvation in your absence.

Are Automatic Feeders Good for Fish?

When used correctly, automatic fish feeders can benefit your aquarium inhabitants. The key is choosing a reliable, well-designed product and taking the time to set it up right.

Here are some tips to ensure your auto feeder works well for your fish:

  • Get a feeder with adjustable portion sizes to suit your tank
  • Make small, incremental adjustments to the amount dispensed
  • Observe your fish after each feeding to spot any signs of over/underfeeding
  • Ensure the hopper doesn’t get moist and clog the discharge mechanism
  • Test run the feeder before going away to confirm correct operation
  • Check battery/power levels and clean the feeder periodically

If you select a suitable feeder and monitor its working, your fish will be happy, healthy and well-fed!

Drawbacks and Considerations

While auto feeders make fishkeeping far more convenient, they have limitations. Being an automated device, there are some risks involved:

What Are the Disadvantages of Automatic Fish Feeders?

  • Malfunction: Technical issues like jamming or electrical failure can disrupt feeding.
  • Overfeeding: Improper settings may release too much food, fouling the water.
  • Food clogs: Flakes and semi-moist pellets can get stuck and block the discharge tube.
  • Food selectivity: Auto feeders work for generic flakes/pellets, not specialized foods.
  • Cost: Programmable feeders are an added expense for your aquarium setup.

How to Feed Fish Automatically Without Risks?

Here are some tips to minimize any risks when using an automatic fish feeder:

  • Select a feeder from a reputable brand known for reliability and quality.
  • Set the feeding amount on the conservative side and tweak it based on observation.
  • Ensure the hopper doesn’t contain sticky/moist food that could clog it.
  • Periodically inspect the device for any malfunction or blockage. Clean removable parts regularly.
  • Test-run the auto feeder before leaving your fish unattended for long periods.
  • Have someone visit every couple of days as a precautionary measure to check on the feeder.
  • Consider getting a backup power source if electrical issues disrupt the feeder.

With a quality product and some prudent measures, you can successfully leverage auto feeders to make fishkeeping more convenient!

Product Recommendations

With so many automatic fish feeders on the market, how do you pick the right one? Here are our top recommendations in each category:

Best Auto Feeding Aquarium

Eheim Everyday Fish Feeder

  • Reliable drum rotation mechanism
  • Moisture-resistant hopper
  • Easy to program twin feed settings
  • Quiet operation
  • Great for flakes and small pellets

Best Automatic Fish Feeder for Flakes

NICREW Automatic Fish Feeder

  • Affordable, budget-friendly option
  • Reliably handles flaky foods
  • Easy to program and operate
  • Compact size for small tanks
  • Clear hopper lets you monitor food levels

Auto Feeder for Saltwater Aquarium

Innovative Marine Frozen Food Feeder

  • Can dispense frozen foods like brine shrimp
  • Insulated to keep food frozen for 24+ hours
  • Generous 10 liter capacity
  • Great for large, fussy marine fish
  • Bit more expensive but worth it for frozen foods

Automatic Fish Feeder for Sale

A variety of online retailers like Amazon and Chewy offer a wide range of automatic fish feeders catering to different needs and budgets:

  • Simple, no-frills feeders under $20
  • Programmable feeders from $30 to $60
  • Heavy-duty, large-capacity pond feeders $100+
  • Keep an eye out for deals, discounts, and coupons on popular feeder models

Frequently Asked Questions

Do Fish Tanks Have Automatic Feeders?

Yes, most modern fish tanks today can accommodate small automatic fish feeders. Nano desktop tanks also have mini feeder models. For large tanks, external feeders are used to mount on the outside.

How Do You Automate Fish Feeding?

You can automate feeding your aquarium fish by installing an automatic fish feeder and programming it according to your fish’s feeding schedule and amount. Choose a feeder with an easy-to-set timer and portion size controls. Place it securely on the tank hood or rim so the food can dispense into the tank.

Self-Feeding Aquarium: Is It Possible?

Yes, with a reliable automatic fish feeder, you can create a self-feeding aquarium that requires minimal intervention. The feeder will dispense the proper food amounts at scheduled times. Just ensure it is working correctly before leaving the tank unattended. Perform maintenance like cleaning and battery replacement periodically.

What Foods Can an Auto-Feeder Accommodate?

Most automatic feeders are designed for free-flowing dry foods like flakes, pellets, crisps or granules. Models with a drum or sloped hopper can also handle semi-moist pellet foods. Specialized feeders are available for frozen or live foods too.

How Often Should You Feed Fish with an Auto-Feeder?

Generally, small feedings 2-3 times a day are ideal for most community tank fish. Slow-eating fish like goldfish may do better with 1-2 larger meals. Adjust feed amounts carefully and observe fish after feeding to determine optimal frequency and portions.

Can You Overfeed Fish with an Automatic Feeder?

Overfeeding is a risk if the auto-feeder discharge amount is not calibrated correctly. Start with conservative portions and gradually increase over days while gauging the fish’s appetite. Leftover uneaten food necessitates more frequent tank cleaning.

How Long Can a Fish Go Without Food with an Auto-Feeder?

Most fish species can go 4-7 days without food with an automated feeder. Monitor water parameters, reduce lighting duration and supplement with algae in the interim. Extremely long travel periods may warrant a fish sitter checking in.


Auto feeding devices are truly a breakthrough innovation in fishkeeping. They alleviate the daily feeding chore while keeping your aquatic pets happy and healthy even in your absence. Whether you have a tiny betta bowl or a large reef tank, modern programmable feeders accommodate all setups and foods. Do your research to find one tailored for your needs. With some initial calibration and periodic maintenance, an auto feeder will be an invaluable investment for leisurely fishkeeping!