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Species profile

Black Sharkminnow

Labeo chrysophekadion

Common names: Black Sharkminnow, Black Shark, Sail Fin Shark, Black Labeo

Recognized speciesSharks

Adult size

Up to 60 cm

Up to 60 cm

Countries of origin

  • See all stock from Cambodia
  • See all stock from Indonesia
  • See all stock from Laos
  • See all stock from Malaysia
  • See all stock from Thailand
  • See all stock from Vietnam

Good fit for your tank?

Good fit for

  • A keeper with room for a large aquarium

Think carefully if

  • You cannot provide about 2430 litres for a fully grown fish
  • You keep shrimp you want to protect

A huge, jet-black fish that reaches 60 cm and is very aggressive towards other bottom-dwellers. Keep alone or in a small group in 2430 litres or more.

Appearance and Identification

A huge, jet-black fish that reaches 60 cm and is very aggressive towards other bottom-dwellers. It is often sold small, but only very large tanks can house it.

Check the scientific name when buying, as common names vary between sellers and countries.

Females are usually rounder.

Tank Requirements

Suggested filter
About 9,720–12,150 litres an hour
Suggested heater
About 2425–3650 W for this tank
Minimum tank volume
2430 litres
Minimum tank length
300 cm
Minimum group size
1
Recommended group size
1
Activity level
Active
Flow preference
Moderate
Planting preference
Moderately planted
Hiding places
Yes
Lid recommended
Yes
Jumping risk
Moderate

Allow plenty of swimming length, with a tight lid, because these fish jump. Caves and wood help break up territories.

Behaviour and Tankmates

An active, fast swimmer, despite its small size compared with true sharks, and it is not related to them.

See the notes for this species, as some need a group while others are best alone.

Bottom-dwelling species can be territorial with their own kind and similar fish.

Keep with robust fish of a similar size that stay higher in the water. It is likely to eat shrimp. Choose its tankmates with care.

Check tankmates for this species

Water Parameters

Temperature
20–26 °C
pH
6–8
GH
2–15
Stability importance
Important

Fairly tolerant of different water, if it is clean and stable.

Parameter caveat
Keep up regular water changes, and acclimatise new fish slowly.

Feeding

Diet types
Omnivore
Feeding frequency
Daily
Preferred foods
  • Quality pellets or flakeA good staple. Choose a size that fits its mouth.
  • Frozen bloodworm, daphnia and brine shrimpOffer several times a week for colour and condition.
  • Algae or vegetable-based foodInclude some plant matter for balance.

An omnivore that takes prepared foods, algae and small frozen foods.

Feed small amounts, and remove anything left after a few minutes.

Breeding

Breeding difficulty
Not commonly bred
Parental care
Unknown

Little has been recorded about breeding this fish in aquariums.

Habitat and Origin

Geographic origin
Cambodia, Indonesia, Laos, Malaysia, Southeast Asia, Thailand, Vietnam
Natural habitat
Floodplain, Freshwater Stream, River
Aquarium contexts
Large Freshwater Aquarium, Planted Aquarium
Audience level
Specialist

Classification

Profile type
Recognized species
Genus
Labeo
Family
Cyprinidae
Species group
Fish, Sharks

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