Endlers or Endler's Guppies, are small and colorful freshwater fish closely related to the Guppy (Poecilia reticulata). Here's some information about the Endler's Livebearer, including the Venezuelan variety:

1. Origin: Endler's Livebearers are native to the streams and ponds of Venezuela, specifically in the Cumana region. They were discovered in the 1930s by Franklyn F. Bond, but it wasn't until the late 1970s that they gained popularity in the aquarium hobby.

2. Appearance: Endler's Livebearers, including the Venezuelan variety, exhibit vibrant coloration and striking patterns. The Venezuelan strain typically showcases a combination of colors such as metallic blue, green, orange, and black. They have a slender body and a slightly pointed tail fin. Their fins may also display intricate patterns and coloration.

3. Size: Endler's Livebearers are small fish, usually reaching lengths of about 1 to 1.5 inches (2.5 to 3.8 cm) when fully grown.

4. Behavior: Endler's Livebearers are peaceful and social fish, making them excellent community tank inhabitants. They are active swimmers and enjoy exploring their surroundings. They can be kept in groups without significant aggression issues.

5. Tank Requirements: Endler's Livebearers are adaptable fish that can thrive in various tank setups. They prefer a temperature range of 72-82°F (22-28°C) and a pH level between 6.5 and 8.0. Providing a well-planted aquarium with plenty of hiding spots and open swimming areas is ideal for them. Regular maintenance and good water quality are essential for their health.

6. Diet: Endler's Livebearers are omnivores and will accept a wide range of foods, including high-quality flakes, pellets, frozen foods, and live foods such as brine shrimp and bloodworms. Offering a varied diet ensures their nutritional needs are met and helps maintain their coloration.

7. Breeding: Endler's Livebearers, including the Venezuelan variety, are prolific breeders. They are livebearers, meaning females give birth to free-swimming fry instead of laying eggs. Breeding them in captivity is relatively straightforward, and they can produce offspring regularly.

8. Tankmates: Endler's Livebearers are peaceful and can be kept with other peaceful fish species that share similar water parameter requirements. However, it's best to avoid keeping them with larger or aggressive fish that may prey on them or compete for resources.