And just a plain old minnow. It's actually called a fathead minnow, but other than the size of its head, it looks rather like a feeder fish.

Minnows and Carps - Amistad National Recreation Area (U.S. National Park Service)

The Complete Guide to Rosy Red Minnows Care

fathead minnow

Fathead Minnow - Stock My Pond

Sunfish Care - Keeping Pumpkinseeds, Bluegills and Their Relatives

Common Carp – LIFE IN THE LOWER SUSQUEHANNA RIVER WATERSHED

Sunfish Care - Keeping Pumpkinseeds, Bluegills and Their Relatives

Sonny's Fish Room An aquarium hobby blog

X20 Dadio Danio only $121.53

Fathead Minnow