- "I caught a killifish! Maybe I'll put it in a chili dish!"
The Killifish, Oryzias latipes, is an uncommon fish that can be found in the holding pond all day long, between the months of April and August. It is one of four fish catchable in the holding pond, alongside Crawfish, Frog, and Tadpole. It can be sold for 300 Bells.
An information board in the aquarium will provide information about this fish.
"Killifish are small, travel in schools, and are known for having eyes higher up on their faces than others. They swim in shallow areas in rivers and mostly eat bugs that float on the surface of the water. This is why they have mouths as high up their faces as their eyes, making them effective hunters. Being the same temperature as the water they inhabit, getting grabbed by warm hands can shock them."
In real life
It is unclear what sort of Killifish appears in the Animal Crossing series. Judging by the size estimated within the built-in encyclopedia, it could be a Moonlight Medaka or Japanese Rice Fish. However, all Killifish have common traits, noticeably, their translucent skin which has made them an interest in biology due to the visibility of their digestive system. They are a harmless, common, aquarium fish.