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FishmediumFreshwater

Bala Shark

Balantiocheilos melanopterus

📍 Southeast Asia

Ask Finn

The Bala Shark is a large, active freshwater fish known for its sleek silver body and distinctive black-edged fins. Despite their common name, they are not true sharks but rather cyprinids that require spacious tanks and thrive in groups. They are popular in the aquarium hobby for their striking appearance and energetic swimming behavior.

Size14"
Min Tank125g
School3+
peaceful
Zoneall

Care Guide

Diet

Bala Sharks are omnivorous and should be fed a varied diet consisting of high-quality pellets, flakes, and occasional live or frozen foods like bloodworms and brine shrimp. Feed them 2-3 times daily in amounts they can consume within a few minutes. They will also nibble on soft aquatic plants and algae wafers.

Behavior

Bala Sharks are highly active, schooling fish that spend most of their time swimming in open water. They are peaceful toward other fish but can be skittish and may injure themselves on tank decorations or glass when startled. They are best kept in groups of at least three individuals, as they exhibit social behavior and reduced stress when together.

Breeding

Breeding Bala Sharks in captivity is extremely difficult and rarely successful in home aquariums. They require very large tanks, specific water conditions, and hormonal triggers that are difficult to replicate. Most specimens available in the hobby are wild-caught or commercially bred in specialized facilities.

Common Diseases

Ich (Ichthyophthirius multifiliis)

Symptoms

White spots on body and fins, rapid breathing, flashing against objects, lethargy

Treatment

Increase water temperature to 28-30°C (82-86°F), perform frequent water changes, use ich medication containing malachite green or formalin, ensure adequate aeration

Fin Rot

Symptoms

Frayed or deteriorating fins, discoloration at fin edges, fin loss

Treatment

Perform large water changes to improve water quality, use antibacterial medication, remove sharp decorations that may cause injury, maintain optimal water parameters

Bacterial Infection

Symptoms

Open sores, ulcers on body, cloudy eyes, loss of appetite, color fading

Treatment

Isolate affected fish in a quarantine tank, use broad-spectrum antibiotic medication, perform daily water changes, maintain pristine water conditions

Parasitic Infection

Symptoms

Excessive scratching, visible parasites, weight loss, lethargy, clamped fins

Treatment

Use antiparasitic medication appropriate for the specific parasite, perform frequent water changes, quarantine affected fish, treat the main tank if necessary

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Quick Facts

diet
Omnivore - feeds on high-quality pellets, flakes, and occasional live or frozen foods such as bloodworms and brine shrimp
lifespan
10-12 years
max size
35 cm (14 in)
tank size
125 gallons minimum
temperament
peaceful

Water it likes

ph
6.5-8.0
ammonia
0 ppm
nitrate
<20 ppm
hardness
5-12 dGH
temperature
75–82°F (24–28°C)

Stats

Community tips0
Kept by0 hobbyists