Endler's Livebearers, including the calico variety, are small and colorful freshwater fish closely related to Guppies. Here's some information about Endler's Livebearers with a focus on the calico variety:

1. Appearance: Calico Endler's Livebearers are known for their vibrant and varied coloration. They typically have a base coloration that includes patches of orange, black, and white, resembling the calico pattern seen in some cats. Their fins may also display similar coloration, often with intricate patterns.

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

3. Behavior: Calico 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.

4. Tank Requirements: Calico 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.

5. Diet: Calico 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 enhance their coloration.

6. Breeding: Calico Endler's Livebearers are prolific breeders, similar to Guppies and other Endler's Livebearer varieties. 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.

7. Tankmates: Calico 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.

8. Maintenance: Regular water changes, proper filtration, and monitoring water parameters are essential for keeping Calico Endler's Livebearers healthy. They are relatively hardy fish but still require proper care to thrive.