In the late 1940s the young scientist Dr. Sc. Ulrich Baensch bred and imported aquarium plants and tropical fish. At that time, the hobby of fishkeeping was very exotic, as obtaining live food for fish was very difficult.

As a PhD biologist Baensch had knowledge of the food components that are important for the health of the fish. In early 1952, he successfully developed the first staple fish food in paste form: Biomin. This was patented, introduced to the market and became an overnight success.

Three years later, as a product development, Baensch presented the world’s first fish food for aquarium fish in a dry flake form: TetraMin. The name is derived from the Greek word "tetra" for the, at that time four, now seven, different types of flake and "Min" for the added vitamins. With this fish food, in the characteristic yellow tin with a brown lid, Baensch closed a gap in the market and allowed the spread of fishkeeping as a hobby for everyone.