Ranchu-Red and White 80-90mm(WYSIWYG)

Red & White Ranchu Goldfish (Carassius auratus)

The Red & White Ranchu is a classic fancy goldfish variety prized for its bold red-and-white coloration and elegant Ranchu body shape. With a smooth, arched back, no dorsal fin, and distinctive head growth (wen), this variety is a favourite among collectors and hobbyists alike.

Quick Overview

• Scientific Name: Carassius auratus
• Common Name: Red & White Ranchu
• Size: 12–18 cm
• Lifespan: 10–15+ years
• Temperament: Peaceful
• Care Level: Moderate

Appearance

Red & White Ranchus feature a stark contrast of deep red and bright white, usually with a solid red head or wen. Their rounded body and flowing fins complement the iconic Ranchu silhouette. The wen develops as they mature, giving them a regal, almost lion-like appearance.

⚠️ Tank Size Requirements (Very Important)

Goldfish require generous space to thrive:

• ✅ Minimum: 60 litres per goldfish
• ⭐ Ideal: 80–100 litres per goldfish
• ❌ Bowls and small tanks are not suitable

👉 Example:

• 2 Ranchus = minimum 120L (ideally 160–200L)

Adequate volume ensures healthy growth, proper swimming space, and stable water quality.

Tank Requirements

• Temperature: 18–24°C
• pH: 6.5–7.5
• Filtration: Strong (heavy waste producers)
• Setup:
  • Smooth substrate or bare bottom
  • Minimal, rounded décor
  • Open swimming space for comfort

Diet

Omnivorous:

• High-quality sinking goldfish pellets
• Gel foods for digestive health
• Blanched vegetables (peas, spinach)
• Occasional protein treats

Tank Mates

• Best kept with other slow, fancy goldfish
• Avoid:
  • Fast-swimming goldfish (comets, commons)
  • Fin-nippers
  • Tropical species

Behavior

• Peaceful and calm
• Slow, waddling swim style
• Enjoy company of similar-bodied goldfish

Special Considerations

• Wen growth requires clean water to prevent infection
• Heavy waste producers → regular maintenance needed
• No dorsal fin → less stability in strong currents
• Prone to buoyancy issues if overfed or fed only floating foods

Why Choose a Red & White Ranchu?

With striking colour contrast and classic Ranchu elegance, the Red & White Ranchu is perfect for hobbyists wanting a showpiece goldfish that is both beautiful and interactive.