Shubunkin Goldfish Care Guide
The shubunkin goldfish (Carassius auratus) is a colourful and hardy coldwater fish popular in the UK. Known for its calico pattern and long, flowing fins, it's a favourite for outdoor ponds and large aquariums.
In this guide, you'll learn everything you need to know about shubunkin goldfish care, including tank and pond size, water conditions, compatibility, feeding, and typical UK prices - plus how to buy or sell them locally.
Quick facts about Shubunkin Goldfish
Shubunkin goldfish are a single-tailed variety, similar to common and comet goldfish, but with a distinctive speckled "calico" pattern of blue, red, orange, black, and white.
They are active swimmers and grow large, making them best suited to ponds or spacious aquariums.
Carassius auratus
25-30 cm (can grow larger in ponds)
Domesticated (developed in Japan)
120L+ (single fish), pond preferred long-term
10-20+ years
Peaceful, active
4-24°C (coldwater species)
Omnivore (pellets, flakes, vegetables, live foods)
6.5-8.0
£3-£10 per fish
How Many Shubunkin Goldfish Should You Keep?
Shubunkin goldfish are social and do best with companions.
- Keep at least 2 where possible
- Stocking should match tank or pond size
- Provide plenty of swimming space
Overstocking can lead to:
- Poor water quality
- Stunted growth
- Increased disease risk
Due to their size and activity, ponds are often the best long-term option.
Ideal Tank or Pond Conditions for Shubunkin Goldfish
Providing the right environment is essential for healthy growth.
- Tank Setup: Large aquarium with open swimming space
- Pond Setup: Outdoor ponds are ideal for adult fish
- Substrate: Sand or smooth gravel works well
- Plants & Decor: Hardy plants with open areas for swimming
- Water Conditions: Stable, well-oxygenated water
- Filtration: Strong filtration is essential
- Lighting: Natural or moderate artificial lighting
Regular maintenance is key to maintaining water quality.
Compatibility with Other Fish
Shubunkin goldfish are peaceful but require suitable tankmates.
- Good Tankmates: other shubunkins, common goldfish, comet goldfish, and similar coldwater species
- Avoid: tropical fish, fancy goldfish (too slow), and very small fish
Their speed and appetite can outcompete slower fish.
Are Shubunkin Goldfish Easy to Care For?
Shubunkin goldfish are easy to care for and are suitable for beginners with the right setup.
They require:
- Large tanks or ponds
- Strong filtration
- Regular water changes
- A balanced diet
They are hardy and adaptable but still need proper space.
Shubunkin Goldfish Price in the UK
In the UK, shubunkin goldfish typically cost between £3-£10 per fish.
Prices vary depending on:
- Colour pattern (more blue is often more desirable)
- Size and quality
- Shop vs hobbyist sellers
They are widely available and affordable.
Where to Buy Shubunkin Goldfish in the UK
Shubunkin goldfish are widely available in UK aquarium shops, garden centres, and from private sellers.
Sourcing fish locally can:
- Reduce transport stress
- Improve survival rates
- Offer better value
TankMate UK helps connect fishkeepers and pond keepers who want to buy, sell, or rehome fish safely - without shipping.
Can You Sell Shubunkin Goldfish?
Yes - shubunkin goldfish are commonly sold or rehomed by hobbyists.
Selling locally is often the best option, as it:
- Minimises stress for the fish
- Avoids the risks of transport
- Helps find suitable homes
TankMate UK allows you to list fish quickly and find local buyers.
Feeding Shubunkin Goldfish
Shubunkin goldfish are omnivorous and require a varied diet.
Key Tips:
- Feed high-quality goldfish pellets or flakes
- Supplement with vegetables like peas and lettuce
- Offer occasional live or frozen foods
- Avoid overfeeding
- Feeding little and often helps maintain water quality.
Common Problems with Shubunkin Goldfish
- Stunted growth, often caused by:
- Tanks that are too small
- Poor water quality
Poor water quality, due to:
- Overfeeding
- Inadequate filtration
Competition for food, caused by:
- Mixing with slower fish
Why Shubunkin Goldfish Are So Popular
- Beautiful calico colouration
- Hardy and beginner-friendly
- Active and engaging behaviour
- Suitable for ponds and large aquariums
- Long lifespan
When kept correctly, shubunkin goldfish are colourful, lively fish that thrive in spacious environments.
Frequently Asked Questions
Their calico pattern and often longer fins distinguish them from other goldfish.
Yes, they are ideal pond fish.
No, they are coldwater fish.
At least 120 litres for one fish, with larger setups or ponds preferred.
Looking to Buy or Sell Shubunkin Goldfish Locally?
TankMate UK connects fishkeepers and pond keepers who want to buy, sell, or rehome fish safely within their local area.
Whether you're stocking your tank or pond or passing fish on to a new home, you can:
- Browse fish available near you
- List your own fish in minutes
- Avoid the risks of transport