Max Size: 90cm

Black Sharkminnow (Labeo chrysophekadion)

The beautiful Black Shark Minnow can often be found for sale in the aquarium trade; however, they are unsuitable for the average home aquarium due to their ability to grow to 90cms once mature. They are also territorial and aggressive by nature.

Black Shark Minnows are sold as juveniles to tropical fish-keeping enthusiasts. However, the Black Shark will ultimately outgrow its surroundings and become ever aggressive and territorial towards other tankmates and similarly-shaped fishes, especially if the tank has restricted space.

As a result, you should not keep this fish in a community tank with smaller fish or any delicate aquarium species.

It is advisable only to keep this species in a single species tank. However, suppose you have a large enough aquarium. In that case, you can keep these fish alongside other similarly sized, robust fish species such as Cichlids capable of handling their aggressive disposition. Or species that mainly occupy the top levels of the tank.

Black Shark Minnow are similar to the smaller well-known Red Tailed Black Shark and are sometimes mistaken for a black variant of this fish by unsuspecting hobbyists.

While juvenile, the Black Shark Minnows are solid black. They change to a greyish colour with a bright spot on each scale as they mature.

Black Shark Minnows are a popular food source in South Asia because of their large size.


Black Sharkminnow
Black Sharkminnow
Black Shark Minnow
Black Shark Minnow
Quick Facts
Scientific NameLabeo chrysophekadion
Other NamesBlack Shark, Black Labeo
OriginsCambodia, Laos, Thailand, Vietnam
Aquarium LevelBottom - Middle
DifficultyIntermediate - Advanced
Best kept asLoners
Lifespan10 - 15 years
Water Parameters
Water TypeFreshwater
PH6.5 - 7.5
GH10 - 20
TDS36 - 268
68 - 79℉
20 - 26℃

Natural Habitat

Mekong River
Kapuas River


In the home aquarium, the Black Sharkminnow will readily accept most good quality dried foods such as granules, flakes and sinking pellets. These modern food products have been developed to provide all adequate nutrition to maintain your fish's health and dietary requirements.

Providing additional foodstuffs such as live, frozen, and freeze-dried meals such as bloodworm, daphnia, and tubifex once or twice a week will provide additional benefits to your fish's health and well-being but is not a must for this fish.

It should be noted that bloodworms should only be given as an occasional treat and should not be used as the staple diet as they are difficult for fish to digest and can potentially cause blockages.

This fish is an omnivore in the wild, meaning it will consume some vegetable matter. Although most modern fish foods take this into account and include them in their products, you can still supplement your fish's diet with blanched vegetables such as spinach, broccoli, and zucchini. Ensure you do not overfeed your fish and remove any leftovers the following day.

Sexual Dimorphism

It is practically impossible to differentiate between male and female Black Shark Minnows when they are juveniles. However, sexually mature females are usually deeper-bodied than males and may grow slightly more significant. In contrast, males are slimmer and a little smaller.

Other Sharks of interest

Bala Shark(Balantiocheilos Melanopterus)
Chinese High Fin Banded Shark(Myxocyprinus Asiaticus)
Chinese Neon Golden Stripe Shark(Sarcocheilichthys parvus)
Rainbow Shark(Epalzeorhynchos Frenatum)
Red Tailed Black Shark(Epalzeorhynchos bicolor)
Siamese Algae Eater(Crossocheilus oblongus)
View all Sharks
Date Added: 05/07/2021 13:49:43 - Updated: 10/08/2022 13:23:36