1. Introduction
Thank you for choosing the fishkeeper Automatic Aquarium Fish Feeder. This device is designed to provide consistent and reliable feeding for your aquatic pets, whether you are at home or away. With its large 320ML capacity, programmable timer, and multiple installation options, it offers convenience and peace of mind for fish, turtle, koi, goldfish, and betta owners.
2. Safety Information
Please read all safety instructions before operating the device to prevent injury or damage. Keep this manual for future reference.
- Ensure the feeder is securely mounted to prevent it from falling into the water.
- Do not immerse the main unit of the feeder in water.
- Keep the battery compartment dry. Replace batteries as indicated.
- Use only the recommended battery type (2 x AAA batteries).
- Keep out of reach of children and pets.
- Do not attempt to disassemble or repair the unit yourself. Contact customer support if issues arise.
3. Package Contents
Verify that all items are present in the package:
- 1 x Automatic fish feeder
- 2 x AAA batteries
- 3 x Fish food dischargers (various sizes)
- 1 x Double-sided sticker
- 1 x Mounting base (plastic latch base)
- 1 x Adjustable clamp base
- 1 x User Manual

Figure 1: Included Components of the fishkeeper Automatic Fish Feeder.
4. Product Features
- 320ML Large Capacity: Provides continuous feeding for 3 to 6 months, reducing the need for frequent refills. The transparent food tank allows easy monitoring of food levels.
- Programmable Timer: Offers automatic feeding every 8, 12, or 24 hours.
- Manual Feeding Mode: Allows for instant feeding at any time without affecting programmed schedules.
- Moisture-proof & Anti-blocking Design: Features a spring-driven drawer for feeding and a rubber curtain to prevent food caking and outlet blockage.
- Three Precise Feeding Sizes: Includes three different food dischargers (5x5mm, 10x10mm, 17x10mm) to control portion sizes for various fish types and food forms (powder, small pellet, large pellet).
- Three Fixing Methods: Versatile installation options for different aquarium setups: on the aquarium cover, ribbed glass, or vertical glass.
- Ultra-quiet Operation: Operates at less than 5dB during feeding and 0dB on standby.

Figure 2: Ultra-quiet Operation for Undisturbed Environments.
5. Setup and Installation
5.1 Battery Installation
- Open the battery compartment cover on the bottom of the feeder.
- Insert two AAA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
5.2 Choosing a Food Discharger
Select the appropriate food discharger based on your fish food type and desired portion size. The feeder includes three sizes:
- 5mm x 5mm: For powder or very small pellets (less than 1g per feed).
- 10mm x 10mm: For small pellets (approximately 1g per feed).
- 17mm x 10mm: For larger pellets (approximately 3g per feed).
To install: Press the button to push out the feed bin, insert the desired discharger, then press again to pull it back in.

Figure 3: Food Discharger Options and Compatibility.
5.3 Mounting the Feeder
The feeder offers three installation methods:

Figure 4: Three Installation Methods for the Fish Feeder.
Method 1: Fixed on Aquarium Cover
- Snap the plastic latch base into the slot on the feeder base.
- Remove the protective film from the double-sided sticker and attach it to the plastic latch.
- Attach the feeder securely to the aquarium cover, ensuring the food outlet is positioned over the water.
Method 2: Fixed on Ribbed Glass
- Insert the adjustable clamp base into the feeder base.
- Fix the clamp base onto the edge of the ribbed tank glass (suitable for glass thickness less than 0.9 inches / 2.4 cm).
- Tighten the adjustable clamp to secure the feeder.
Method 3: Fixed on Vertical Glass
- Insert the adjustable clamp base into the feeder base (note: ensure correct direction for vertical mounting).
- Fix the clamp base onto the edge of the vertical tank glass (suitable for glass thickness less than 0.9 inches / 2.4 cm).
- Tighten the adjustable clamp to secure the feeder.
6. Operation
6.1 Filling the Food Tank
The transparent food tank has a 320ML capacity. To fill:
- Slide open the top cover of the food tank.
- Pour the desired fish food into the tank.
- Close the top cover securely to maintain freshness and prevent moisture.

Figure 5: Filling the 320ML Food Tank.
6.2 Setting Automatic Feeding Times
The feeder offers three preset automatic feeding intervals:
- 8H: Feeds every 8 hours.
- 12H: Feeds every 12 hours.
- 24H: Feeds every 24 hours.
To set a schedule, press the corresponding button (8H, 12H, or 24H) on the control panel. The indicator light next to the selected interval will illuminate, confirming the schedule is active.

Figure 6: Control Panel with Timer and Manual Feeding Options.
6.3 Manual Feeding
To feed your fish instantly without affecting the programmed schedule, press the manual feeding button (often indicated by a hand icon) on the control panel. The feeder will dispense one portion of food immediately.
6.4 Moisture-proof and Anti-blocking Mechanism
The feeder is designed with a spring-driven drawer that automatically slides back after each feeding to seal the food tank, preventing moisture absorption. A rubber curtain also cleans the outlet to prevent food from caking and blocking the dispenser.

Figure 7: Moisture-proof and Anti-blocking Design.
7. Maintenance
Regular maintenance ensures optimal performance and longevity of your fish feeder.
- Cleaning: Clean the food tank and dispenser outlet regularly to prevent food residue buildup. Use a soft, damp cloth for the exterior. Do not use harsh chemicals.
- Battery Replacement: Replace batteries when the low battery indicator appears or if the feeder stops functioning. Ensure the battery compartment remains dry.
- Food Storage: Always close the food tank cover tightly after refilling to keep food fresh and dry.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Feeder does not dispense food. |
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| Food gets wet or caked. |
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| Feeder makes unusual noise. |
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9. Specifications
| Brand: | fishkeeper |
| Model Name: | MUS-FK036-320ML |
| Capacity: | 320ML |
| Material: | Acrylonitrile Butadiene Styrene (ABS) |
| Color: | Black |
| Dimensions (LxWxH): | 4 x 4 x 7 inches (Product); 6.69 x 4.65 x 3.62 inches (Package) |
| Item Weight: | 0.7 Pounds / 11.2 ounces |
| Power Source: | 2 x AAA Batteries |
| Feeding Intervals: | 8H, 12H, 24H (Automatic); Manual |
| Target Species: | Fish (Aquarium Fish, Goldfish, Tropical Fish) |
| Special Features: | Adjustable, Automatic, Easy to Use, Moisture-proof, Anti-blocking, Ultra-quiet |
10. Warranty and Support
This fishkeeper Automatic Aquarium Fish Feeder comes with a 2-Year Manufacturer's Warranty.
For warranty claims, technical support, or any questions regarding your product, please contact fishkeeper customer service. Refer to the contact information provided on the product packaging or the official fishkeeper website.
Please retain your proof of purchase for warranty validation.