SHUBUNKINS

Ah, the dazzling darlings of the goldfish world! Shubunkins are a type of single-tailed goldfish known for their vibrant, calico-style coloring—think splashes of orange, red, white, blue, and black all shimmering together like a living mosaic. They originated in Japan around 1900 and are prized for their hardiness, making them ideal for both aquariums and outdoor ponds.

They can grow up to 18 inches in spacious ponds and live 10–15 years on average, sometimes even longer with excellent care. Their nacreous (pearly) scales and energetic personalities make them a joy to watch.

Shubunkins are hardy and lively, but they thrive best when their environment and care are dialed in just right. Here’s how to keep your calico companions happy and healthy:

Habitat Setup

• Tank or Pond Size: Minimum 20 gallons per fish in a tank; ponds should be at least 200 gallons. These fish love to swim!
• Water Conditions: Keep water between 65–75°F (18–24°C), pH 6.5–8.0. They tolerate a range, but stability is key.
• Filtration: Use a strong filter to handle their waste—Shubunkins are messy eaters.
• Substrate & Decor: Smooth gravel and hardy plants like anubias or hornwort work well. Avoid sharp decorations that could damage their fins.

Feeding

• Frequency: Feed adults once or twice daily; juveniles may need 2–3 small meals a day.
• Diet: High-quality goldfish pellets or flakes, supplemented with blanched veggies (peas, spinach) and occasional treats like bloodworms or daphnia.
  • Tip: Only feed what they can eat in 2–3 minutes to avoid polluting the water.

   Maintenance

  • Water Changes: Replace 25–30% of the water weekly to keep toxins in check.
  • Testing: Regularly test for ammonia, nitrites, nitrates, and pH.
  • Observation: Watch for signs of illness like clamped fins, white spots, or sluggish behavior.

Companionship

• Tank Mates: Other peaceful, similarly sized goldfish are ideal. Avoid fin-nippers or aggressive species.
• Behavior: Shubunkins are social and active—great for community setups if space allows.