Introducing the inD Aquatics aF4 – Automated Frozen Fish Food Feeder

Key Features & Technical Specifications

Refrigerated Salt Water (RSW) Cooling Technology

The aF4 uses advanced RSW cooling to keep frozen fish food in a slushy state, between –1 °C and 5 °C, for up to 20 days. This ensures that every feeding delivers fresh, nutrient-rich food to your aquarium fish.

Large Capacity & Precise Delivery

• Holds over 50 frozen food cubes (approximately 200 mL).

• Dispenses anywhere from 5 mL to 50 mL per feed, allowing precise feeding for small reef tanks or larger aquariums.

Self-Cleaning & Maintenance Automation

The unit includes an automatic flush cycle after each feeding to prevent clogs and buildup, along with a deeper AutoClean function to keep the system running smoothly with minimal maintenance. The full inD Aquatics product line can be purchased from Aquarium Specialty. 

Smart Controller & Home Integration

• Compatible with popular aquarium controllers like Neptune Apex, GHL Profilux, and CoralVue Hydros via a 0–10 V input.

• With the optional inD Connect Wi-Fi module, you can schedule feedings remotely through the eWeLink app and control the feeder using Alexa, Siri, or Google Home.

Compact Design & Flexible Mounting

With a footprint of just 5.87" × 5.39" × 6.85", the aF4 is compact and quiet. It includes mounting options for rimless, euro-braced, and rimmed aquariums, making it easy to adapt to your setup.

Power Recovery & Warranty

If your aquarium experiences a power interruption, the aF4 is designed to resume feeding automatically once power returns. Each unit also comes with a full one-year warranty for peace of mind.

Why the aF4 Stands Out

Most automatic feeders on the market are designed for dry food only. The aF4 changes the game by offering a reliable frozen food solution, ideal for reef fish such as Anthias, seahorses, and predators that thrive on nutrient-rich frozen diets. This feeder provides consistent, high-quality feeding whether you are home or away.

Real-World Hobbyist Feedback

Early users have praised the compact design, generous food capacity, and easy setup. The self-cleaning feature and Apex integration are particularly popular among reef keepers looking for automation and consistency.

Some aquarists note that without a controller, scheduling options are limited to once a day. However, with controller integration or the Wi-Fi module, the aF4 becomes highly flexible and customizable.

Development Background

The aF4 concept began in 2019 as a prototype from inD Creations, which later evolved into inD Aquatics. After successful crowdfunding and multiple design refinements, the aF4 is now available to hobbyists worldwide.

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Summary Table

Conclusion

The inD Aquatics aF4 is a revolutionary step forward in aquarium automation. With its cooling technology, self-cleaning system, and controller compatibility, it offers peace of mind and consistent feeding for aquarists who want the best for their fish. Whether you keep a thriving reef, delicate seahorses, or large predators, the aF4 ensures your fish get the nutrition they need—even when you’re not there.