Bluegill

The bluegill is a fish you catch in rivers. Look for a small shadow. In the northern hemisphere it is around all year, from 9 AM – 4 PM. Nook's Cranny pays 180 Bells, C.J. pays 270 Bells.

A small river shadow out in the daytime all year round. It is cheap and very common, so you will catch plenty while hunting rarer daytime fish.