KOI (MEDIUM)

Origins and Classification

• Scientific Name: Cyprinus rubrofuscus (Domesticated Koi variety)
• Family: Cyprinidae (Carps and Minnows)
• Origin: Developed through centuries of selective breeding in Japan, originating from the common carp. Modern Koi are admired for their brilliant colors, unique patterns, and graceful swimming behavior.
• Popularity: Medium-sized Koi are especially popular for smaller ponds or garden water features, offering the same beauty and serenity as their larger counterparts while being easier to maintain.

---

🎨 Appearance

• Color: Comes in a wide range of vivid combinations, including red, white, orange, black, yellow, and blue. Notable varieties include Kohaku (red-white), Sanke (tri-color), and Showa (black-red-white).
• Structure:
  • Sleek, torpedo-shaped body with flowing fins.
  • Prominent barbels around the mouth used for sensing food.
  • Some varieties exhibit metallic scales (Ogon and Platinum types).
• Size:
  • Medium-sized adults typically reach 12–20 inches (30–50 cm).
• Lifespan: 20–30 years, and potentially longer with proper pond care and diet.

---

🏡 Pond Requirements

• Pond Size: Minimum 500–800 gallons for a small group; 2–3 feet depth recommended for temperature stability.
• Water Parameters:
  • Temperature: 59–77°F (15–25°C)
  • pH: 7.0–8.5
  • Hardness: 6–12 dGH
• Lighting: Prefers natural daylight; partial shade helps prevent overheating.
• Filtration & Aeration:
  • Use efficient filtration to handle biological waste.
  • Maintain strong oxygenation using air stones, fountains, or waterfalls.
• Habitat Setup:
  • Add smooth rocks, aquatic plants, and shallow resting areas.
  • Avoid overcrowding — allow ample swimming space for growth.