Ranchu Calico Goldfish

The Ranchu Calico Goldfish is a beloved fancy goldfish variety, celebrated for its hooded head growth, egg-shaped body, lack of dorsal fin, and vibrant calico coloration. Known as the “king of goldfish” in Japan, this elegant species adds charm and sophistication to aquariums and ponds.

Description:

• Common Name: Ranchu Calico Goldfish

• Scientific Name: Carassius auratus

• Family: Cyprinidae

• Maximum Size: 5-8 inches (13-20 cm)

Aquarium Setup:

• Tank Size: Minimum 20 gallons (75 liters) per fish; larger tanks or ponds preferred for optimal growth.

• Temperature: 65-75°F (18-24°C)

• pH: 6.5-7.5

• Hardness: Moderate (5-19 dGH)

• Substrate: Fine sand or smooth gravel to protect sensitive fins and body.

Care Level:

• Difficulty: Moderate; requires consistent water quality and a spacious environment.

• Diet: Omnivorous; feed high-quality goldfish pellets, flakes, fresh vegetables (e.g., blanched peas, spinach), and occasional protein treats like brine shrimp.

• Tankmates: Peaceful and best kept with other fancy goldfish varieties; avoid aggressive or fast-swimming species.

Behavior and Aquascaping:

Ranchu Calico Goldfish are slow, peaceful swimmers that prefer calm environments with ample open space. Add soft plants and smooth decorations to enrich their habitat without risking injury to their delicate bodies and fins.

Additional Tips:

Ranchus are prone to swim bladder issues due to their body shape. Avoid overfeeding, offer a varied diet, and maintain pristine water conditions to promote their health and longevity.