Red Cap Oranda Goldfish - Carassius auratus auratus

Red Cap Oranda Goldfish (Carassius auratus auratus) is a fancy goldfish variety known for its bright white body and distinctive red head growth, or “wen.” This elegant and slow-moving fish is popular for its peaceful demeanor and eye-catching appearance, making it a favorite in both aquariums and ornamental ponds.

Description:

Common Name: Red Cap Oranda Goldfish

Scientific Name: Carassius auratus auratus

Family: Cyprinidae

Size: 6–8 inches

Temperament: Peaceful

Difficulty: Easy

Native Region:

Selective breeding origin – domesticated form of wild carp

Aquarium Setup:

Tank Size: Minimum 30 gallons

Temperature: 65–75°F

pH: 6.5–7.5

Hardness: Moderate

Decor: Smooth substrate, gentle filtration, open swimming space, and minimal sharp décor to prevent injury to the wen

Additional Tips:

• Tankmates: Best with other fancy goldfish varieties

• Diet: Omnivorous – offer sinking pellets, gel foods, blanched vegetables, and occasional frozen or live treats

• Behavior: Social and interactive; avoid housing with fast or fin-nipping species

• Care Note: Monitor head growth (wen) for signs of infection or obstruction