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Food preparation
Get the most out of your aF4 with proper food preparation. Learn which foods work best, how to load the reservoir, and how to maximize freshness for up to 21 days.
How the aF4 Keeps Food Fresh — RSW Technology
The aF4 uses a food preservation method adapted from the commercial fishing industry known as RSW technology — Refrigerated Seawater Technology. Understanding how it works helps explain why high salinity saltwater is essential for dilution, and why t
Compatible Foods and Brands
The aF4 is designed to work with a wide range of frozen fish foods. This guide covers which foods work best, which require special preparation, and which to avoid entirely. These food types work reliably in the aF4 with standard slurry preparation an
Food Freshness & Storage Duration
The aF4 is capable of keeping frozen fish food fresh for up to 21 days under ideal conditions. This guide explains what those conditions are, what a realistic freshness duration looks like for most users, and how to maximize how long your food stays
Loading the Reservoir(Quick/Max)
This guide covers how to load your aF4 correctly — from thawing your food to filling the reservoir and positioning the intake tube. Getting this right is the single biggest factor in reliable, consistent dispensing. The aF4 reservoir holds up to 200
Sheet Food & Large Particle Food Preparation
The aF4 works best with small particle frozen foods like mysis shrimp, brine shrimp, and cyclops that seperate naturally into a pourable slurry. Larger particle foods — including clam, squid, mussel, krill, and predator mix blends — can be used succe
Tips, Tricks & Additives
A collection of useful ideas from our team and community for getting more out of your aF4. Mix and match food typesVarying the food in your reservoir is a great way to provide a more nutritious and diverse diet for your fish. Some of our favourite co