Bala Shark Care Guide
The Bala Shark (Balantiocheilos melanopterus), also known as the Silver Shark, is a large and active freshwater fish popular among UK aquarists. Despite its name, it is not a true shark but a member of the carp family. Its sleek silver body, black-edged fins, and constant swimming behaviour make it a striking addition to large aquariums.
In this guide, you'll learn everything you need to know about Bala Shark care, including tank size, water conditions, compatibility, feeding, and typical UK prices - plus how to buy or sell them locally.
Quick facts about Bala Sharks
Bala sharks are schooling fish native to Southeast Asia. They are often sold as small juveniles but grow into large, powerful swimmers that require substantial space.
They are peaceful fish and make excellent additions to large community aquariums.
Balantiocheilos melanopterus
25-35 cm
Southeast Asia
450L+ (120gal)
8-12 years
Peaceful, active, schooling
22-28°C
Omnivore (pellets, frozen foods, vegetables)
6.5-7.5
£5-£20 per fish
How Many Bala Sharks Should You Keep?
Bala sharks are schooling fish and should never be kept alone.
- A minimum group of 5-6 is recommended
- Larger groups reduce stress and nervous behaviour
- They require substantial swimming space as adults
Keeping too few can lead to:
- Stress and skittishness
- Hiding behaviour
- Increased susceptibility to illness
They are most confident and impressive when kept in proper schools.
Ideal Tank Conditions for Bala Sharks
Providing the right environment is essential due to their size and activity levels.
- Tank Setup: Large aquarium with extensive open swimming space
- Substrate: Sand or gravel substrate
- Plants & Decor: Hardy plants, driftwood, and decorations placed around the edges
- Water Conditions: Clean, stable, well-oxygenated freshwater
- Filtration & Flow: Strong filtration with moderate water movement
- Lighting: Moderate lighting
A secure lid is essential, as bala sharks are powerful jumpers.
Compatibility with Other Fish
Bala sharks are peaceful and suitable for larger community aquariums.
- Good Tankmates: severums, silver dollars, rainbowfish, tinfoil barbs, larger gouramis, peaceful catfish, and geophagus cichlids
- Avoid: very small fish that may be viewed as food and highly aggressive species
Although peaceful, their size and activity can intimidate smaller fish.
Are Bala Sharks Easy to Care For?
Bala sharks are moderately easy to care for but require large aquariums.
They require:
- Significant swimming space
- Excellent water quality
- Proper group sizes
- Strong filtration
They are hardy once established but are often purchased without consideration for their adult size.
Bala Shark Price in the UK
In the UK, bala sharks typically cost between £5-£20 per fish.
Prices vary depending on:
- Size and age
- Availability
- Shop vs hobbyist sellers
Larger specimens may command higher prices.
Where to Buy Bala Sharks in the UK
Bala sharks are widely available in aquarium shops and from hobbyist fishkeepers.
Sourcing fish locally can:
- Reduce transport stress
- Allow you to inspect health and body condition
- Offer better value
TankMate UK helps connect fishkeepers who want to buy, sell, or rehome fish safely - without shipping.
Can You Sell Bala Sharks?
Yes - bala sharks are frequently rehomed once they outgrow smaller aquariums.
Selling locally is often the best option, as it:
- Minimises stress for the fish
- Avoids the risks of shipping
- Helps connect suitable large-tank keepers
TankMate UK allows you to list fish quickly and find local buyers.
Feeding Bala Sharks
Bala sharks are omnivorous and enthusiastic feeders.
Key Tips
- Feed quality pellets or flakes
- Supplement with frozen foods such as bloodworms, brine shrimp, and krill
- Offer vegetables such as peas, spinach, and courgette
- Feed small portions 1-2 times daily
A varied diet supports healthy growth and coloration.
Common Problems with Bala Sharks
Stress and skittish behaviour, often caused by:
- Small group sizes
- Inadequate tank space
- Sudden movements outside the aquarium
Jumping from aquariums, linked to:
- Lack of a secure lid
- Being startled
Stunted growth, caused by:
- Tanks that are too small
- Poor water quality
- Inadequate nutrition
Why Bala Sharks Are So Popular
- Sleek shark-like appearance
- Peaceful despite their size
- Active schooling behaviour
- Excellent centrepiece fish for large aquariums
- Hardy and long-lived
When kept correctly, bala sharks create an impressive display of movement and elegance in large freshwater aquariums.
Frequently Asked Questions
No, they are members of the carp family and are not related to true sharks.
They commonly grow to 25-35 cm in captivity.
No, they are schooling fish and should be kept in groups of at least 5-6.
At least 450 litres, with substantial swimming space and strong filtration.
Looking to Buy or Sell Bala Sharks Locally?
TankMate UK connects fishkeepers who want to buy, sell, or rehome fish safely within their local area.
Whether you're stocking a large community aquarium or rehoming fish that have outgrown their tank, you can:
- Browse fish available near you
- List your own fish in minutes
- Avoid the risks of shipping
Explore local listings with TankMate UK and find the right fish for your aquarium.