Tosakin Goldfish Care Guide
The Tosakin goldfish (Carassius auratus) is a rare and highly distinctive fancy goldfish in the UK. Known for its unique tail that spreads horizontally like a fan when viewed from above, it is prized by enthusiasts and collectors.
In this guide, you'll learn everything you need to know about Tosakin goldfish care, including tank size, water conditions, compatibility, feeding, and typical UK prices - plus how to buy or sell them locally.
Quick facts about Tosakin Goldfish
Tosakin goldfish are a specialised Japanese variety bred for their unique tail shape, which curls outward in a circular, flowing form. They are traditionally kept and viewed from above in shallow, still water.
They are delicate and require specific care conditions compared to other goldfish.
Carassius auratus
12-15 cm
Japan
80-100L+ (single fish, shallow preferred)
10-15+ years
Peaceful, very slow-moving
18-24°C
Omnivore (sinking pellets, vegetables, frozen foods)
6.5-8.0
£30-£100+ per fish
How Many Tosakin Goldfish Should You Keep?
Tosakin goldfish are social but must be kept with great care.
- Keep at least 2 where possible
- Only house with very slow, delicate fancy goldfish
- Avoid mixing with more active species
Keeping them with unsuitable fish can lead to:
- Tail damage
- Stress and competition
- Poor health
They are best kept in species-only or specialist setups.
Ideal Tank Conditions for Tosakin Goldfish
Creating the right environment is critical for maintaining their unique tail shape and overall health.
- Tank Setup: Shallow tanks with minimal water movement are ideal
- Substrate: Bare bottom or fine sand to prevent damage
- Plants & Decor: Minimal, smooth decor to avoid tearing their fins
- Water Conditions: Stable, clean, and well-oxygenated water
- Filtration: Gentle filtration with very low flow
- Lighting: Moderate lighting is suitable
Still water is important to preserve their delicate tail structure.
Compatibility with Other Fish
Tosakin goldfish require extremely careful tankmate selection.
- Good Tankmates: other Tosakin or very slow fancy goldfish (in carefully managed setups)
- Avoid: all fast swimmers, fin-nippers, and active species
They are easily outcompeted and highly vulnerable to fin damage.
Are Tosakin Goldfish Easy to Care For?
Tosakin goldfish are difficult to care for and are best suited to experienced hobbyists.
They require:
- Specialist tank conditions
- Gentle water flow
- Careful feeding and monitoring
- Protection from injury
They are not recommended for beginners.
Tosakin Goldfish Price in the UK
In the UK, Tosakin goldfish typically cost between £30-£100+ per fish. High-quality or imported specimens can cost significantly more.
Prices vary depending on:
- Tail shape and symmetry
- Size and quality
- Breeder and origin
They are rare and considered a premium goldfish variety.
Where to Buy Tosakin Goldfish in the UK
Tosakin goldfish are usually only available from specialist breeders or dedicated fancy goldfish sellers.
Sourcing fish locally can:
- Reduce transport stress
- Allow careful inspection of tail quality
- Offer better value
TankMate UK helps connect fishkeepers who want to buy, sell, or rehome fish safely - without shipping.
Can You Sell Tosakin Goldfish?
Yes - Tosakin goldfish are sometimes sold or rehomed by specialist hobbyists.
Selling locally is often the best option, as it:
- Minimises stress for the fish
- Avoids the risks of transport
- Helps connect with knowledgeable buyers
TankMate UK allows you to list fish quickly and find local buyers.
Feeding Tosakin Goldfish
Tosakin goldfish require a balanced and carefully managed diet.
Key Tips:
- Feed high-quality sinking pellets
- Supplement with vegetables like peas and spinach
- Offer occasional frozen or live foods
- Avoid overfeeding
Gentle feeding practices help ensure all fish receive adequate nutrition.
Common Problems with Tosakin Goldfish
Tail damage, often caused by:
- Strong water flow
- Sharp decorations
- Incompatible tankmates
Stress or poor condition, linked to:
- Incorrect tank setup
- Competition for food
Swim bladder issues, caused by:
- Poor diet
- Overfeeding
Why Tosakin Goldfish Are So Popular
- Unique, fan-shaped tail unlike any other goldfish
- Highly prized by collectors
- Traditional Japanese heritage
- Beautiful when viewed from above
- Rare and distinctive
When kept correctly, Tosakin goldfish are a true showpiece for specialist aquarists.
Frequently Asked Questions
Their tail spreads horizontally into a circular fan shape when viewed from above.
No, they are best suited to experienced hobbyists.
Yes, shallow tanks with very gentle water flow are recommended.
At least 80-100 litres for one fish, with shallow setups preferred.
Looking to Buy or Sell Tosakin Goldfish Locally?
TankMate UK connects fishkeepers who want to buy, sell, or rehome fish safely within their local area.
Whether you're stocking your aquarium 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