The popoche chub (Algansea popoche) is a species of freshwater ray-finned fish in the genus Algansea of the family Cyprinidae.

[2] It is endemic to the Lake Chapala and nearby sections of associated rivers in Jalisco of west-central Mexico.

[3] This is a relatively large omnivorous species of Algansea at up to 23 cm (9.1 in) long.

[3] Although considered threatened,[3] it can be locally numerous.

[4] It is generally not considered a food fish.