Bala Shark Care Guide 2026

The bala shark is one of the most commonly misrepresented fish in the pet trade. Sold as small 2-3 inch juveniles for community tanks, they are actually large, fast-moving, schooling fish that grow to 12–14 inches and need enormous tanks and tight schools of 5 or more individuals. Bala sharks kept alone or in small tanks develop stress-related problems and never reach their potential. Given proper space, they are spectacular, active, and silver-flashing schooling fish.

Natural Habitat

Wild bala sharks inhabit large, fast-moving rivers and lakes of mainland Southeast Asia — particularly the Mekong and Chao Phraya river systems. They are an Endangered species (IUCN) in the wild due to habitat destruction and overfishing. Nearly all fish in the trade are captive-bred in Southeast Asian fish farms.

Water Requirements

Tank Requirements

For juvenile bala sharks: 55 gallons minimum, accepting they will quickly outgrow it. For adult bala sharks in a proper school of 5: 150–200 gallons minimum. The tank must be very long to accommodate their fast, straight-line swimming behavior. A tight-fitting lid is essential — bala sharks are powerful, panicky jumpers that easily leap out of open tanks. Strong filtration and good oxygenation (they come from fast-flowing rivers) are important.

Diet

Omnivores with a strong predatory instinct. Feed large tropical pellets or sticks as staple; supplement with frozen shrimp, krill, earthworms, and occasionally live food for enrichment. They will eat any small fish or invertebrate that fits in their mouths — not suitable for community tanks with small species.

Temperament & Tank Mates

Peaceful toward fish too large to eat but will readily consume small tetras, guppies, and shrimp. Best kept with: large barbs, medium cichlids, large gouramis, and other big, robust fish. School of at least 5 is essential for normal behavior and stress reduction.