Will a bala shark eat black skirt tetras?

No. Black skirt tetras at 2-3 inches are too large and fast to be considered prey by a bala shark. The shark may show brief curiosity but lacks the instinct or ability to catch quick, schooling fish. Bala sharks are generally peaceful toward fish they cannot easily consume.

How many black skirt tetras should I keep with bala sharks?

Keep at least 6-8 black skirt tetras in a school. Larger schools reduce stress and minimize nipping behaviors directed at tankmates. A proper school also makes the tetras more confident and less likely to hide constantly.

What should I watch for when introducing these species?

Watch for excessive nipping from the tetras toward the bala shark, especially the long fins of juveniles. If nipping occurs, adding more tetras to the school and providing more plants and structures usually resolves it. The bala shark should appear calm and swim actively.

Can Bala Shark Live With Black Skirt Tetra?

By Alex WalshLast reviewed Apr 18, 2026

Yes

Yes, bala sharks and black skirt tetras coexist well in 75 gallons or larger with wide parameter overlaps and non-overlapping zones.

Why

Bala sharks reach about 12 inches while black skirt tetras stay at 2-3 inches, so the size difference is significant but the tetras are too active and fast to be prey.
Both species tolerate temperatures of 72-82F and pH ranges that overlap from 6-7.5, giving plenty of flexibility in water chemistry.
Bala sharks are upper-to-mid level swimmers while black skirt tetras prefer mid-level, so they use different zones and rarely interact directly.
Black skirt tetras are active and fast swimmers that shoal tightly, making them difficult targets even for a curious bala shark.
A 75-gallon tank provides enough open swimming space for the bala shark while giving tetras plenty of room to school.

Minimum shared tank

75 gallons

Shared temperature range

72-82°F

What could go wrong

Black skirt tetras are known for occasional fin nipping, which could become an issue if the tetra school is too small or the tank is cramped.

Gear for a shared tank

Sized for the 75 gallon minimum this pairing needs. Affiliate links — we earn a small commission if you buy through them.

Fluval 307 Performance Canister Filter

Oversized filtration is what lets you stock two species together without water quality crashing. Rated for a tank slightly larger than the 75 gallon minimum.

Check Price on Amazon See full guide

Eheim Jager 300W Thermostat Heater

Holds a steady temperature inside the 72-82°F window both species need.

Check Price on Amazon

API Freshwater Master Test Kit

Keep ammonia, nitrite, and nitrate in check. Two-species tanks have more bioload and less margin for error than single-species setups.

Check Price on Amazon See full guide