Yucatan Pupfish
NameYucatan Pupfish
Scientific NameCyprinodon artifrons
Common NamesYucatan Pupfish
FamilyCyprinodontidae
OriginMexico, Yucatán Peninsula
Temperamentsemi-aggressive
Dietomnivore
Care Levelintermediate
Minimum Tank Size (Gallons)20
Max Size (Inches)2.5
Water TypeBrackish
Temperature Range (°F)72-82
pH Range7.0-8.5
Compatible SpeciesMollies, Other hardy pupfish species (in large tanks), Some brackish gobies, Hardy livebearers
Description
The Yucatan Pupfish is a small, hardy fish endemic to the Yucatán Peninsula, known for its remarkable adaptability to varying water conditions, from freshwater cenotes to brackish coastal lagoons. While generally peaceful, males can become territorial, especially during breeding. They are omnivores, feeding on algae, detritus, and small invertebrates.
