The Pearlscale goldfish (Carassius auratus) is a distinct and popular goldfish variety known for its unique appearance. Here's some information about Pearlscale goldfish:

1. Physical Characteristics:

   • Body Shape: Pearlscale goldfish have a round or egg-shaped body, which is characteristic of fancy goldfish varieties.
   • Scales: The defining feature of Pearlscale goldfish is their dome-shaped, raised scales that resemble pearls. These scales cover the entire body, giving the fish a distinctive appearance.

2. Coloration:

   • Pearlscale goldfish come in various colors, including red, orange, yellow, blue, black, and combinations of these colors.
   • The scales often have a metallic or pearlescent sheen, adding to their aesthetic appeal.

3. Size:

   • Adult Pearlscale goldfish typically reach a size of about 5 to 8 inches (13 to 20 cm), although the size can vary based on factors like genetics, diet, and tank conditions.

4. Lifespan:

   • With proper care, Pearlscale goldfish can live for more than a decade. Some have been known to live even longer.

5. Tank Requirements:

   • Pearlscale goldfish require spacious tanks with good filtration due to their messy eating habits and waste production.
   • A tank size of at least 20 gallons is recommended for a single Pearlscale goldfish, with additional space needed for each additional fish.
   • They thrive in a well-maintained aquarium with stable water parameters.

6. Water Parameters:

   • Temperature: Keep the water temperature in the range of 65 to 75°F (18 to 24°C).
   • pH: Maintain a pH level between 7.2 and 7.6.
   • Ammonia and nitrite levels should be kept at zero, and nitrate levels should be kept low through regular water changes.

7. Diet:

   • Pearlscale goldfish are omnivores and enjoy a varied diet.
   • Feed them high-quality goldfish pellets or flakes, supplemented with fresh or frozen foods like bloodworms, brine shrimp, and vegetables.
   • Be cautious not to overfeed, as goldfish are prone to obesity.

8. Tank Mates:

   • Pearlscale goldfish are generally peaceful but can be slow swimmers, so avoid keeping them with more active or aggressive fish.
   • Ideal tank mates include other fancy goldfish varieties with similar swimming abilities.

9. Health Considerations:

   • Due to their unique scales, Pearlscale goldfish are more prone to skin infections and injuries. Careful handling and maintaining optimal water quality can help prevent health issues.

Always remember that goldfish care requires commitment, and providing a suitable environment and proper nutrition is essential for their well-being. Regular monitoring of water parameters and prompt response to any signs of illness are crucial for keeping Pearlscale goldfish healthy and happy.