A Black Bar Endler, or Endler’s Livebearer (Poecilia wingei), is a small, colorful fish that is closely related to guppies. They are native to Venezuela and are popular among aquarium enthusiasts for their vibrant colors and ease of care. Black Bar Endlers have a slender body with a distinctive black stripe that runs horizontally along their sides. The coloration and patterns on their body can vary, but the black bar is a common feature.