The popoche chub (Algansea popoche) is a species of freshwater fish in the family Leuciscidae, the shiners, daces and minnows. It is endemic to the Lake Chapala and nearby sections of associated rivers in Jalisco of west-central Mexico. This is a relatively large omnivorous species of Algansea at up to long. Although considered threatened, it can be locally numerous. It is generally not considered a food fish.