Oily Bitterling
NameOily Bitterling
Scientific NameRhodeus amarus
Common NamesOily Bitterling, European Bitterling, Common Bitterling
FamilyCyprinidae
OriginEurope
Temperamentpeaceful
Dietomnivore
Care Levelbeginner
Minimum Tank Size (Gallons)20
Max Size (Inches)3.5
Water TypeFreshwater
Temperature Range (°F)50-77
pH Range6.5-8.0
Compatible SpeciesWhite Cloud Mountain Minnow, Danios, Other small, peaceful temperate cyprinids
Description
The Oily Bitterling is a small, peaceful freshwater fish native to Europe, known for its unique symbiotic breeding relationship with freshwater mussels. Males display vibrant colors during spawning, while females use an ovipositor to lay eggs inside mussels. They are generally hardy and prefer cooler water temperatures.
