Fih Flakes

Fih Flakes are small jars of fish food with a blue lid, and they exist in The Archives for one reason: feeding the Fih. They can only spawn in rooms where Fih are present, and in those rooms they are guaranteed, so you never have to search far for them.

Each jar is a single use and you can hold only one at a time. Feeding the Fih with it earns the "Fih Are Friends" achievement, whose description reads "Women fear me". The flakes also count as an edible item for the "Girl Dinner" achievement. The gallery and the wiki sometimes call the item Fih Food.

The wiki page for this item is still a stub, so the list of uses is short: it does not heal you, it has no shop price. Treat it as a collectible that you pick up in the aquarium room and feed on the spot.