Max Size: 8cm

Hillstream Loach (Beaufortia kweichowensis)

The Butterfly Hillstream Loach is a great looking, peaceful, small and very unusual fish that deserves more attention than they currently get.

They are also great for ridding a tank of any algae.

Their body, shape and pattern make them very unique, along with their ease of care, make them the perfect candidate for the community tank.

Its body is flat, narrowed from below, and has fan-shaped pectoral and ventral fins edged with dark colouring. The caudal fins are small and hard to see.

The stomach is translucent, and you can see the internal organs, and their mouths are located below. They are brown with dark spots.

However, this fish is not recommended for the beginner aquarist as they are susceptible to illness and medication because they have no scales and will require proper water purity and temperatures.


Hillstream loach
Butterfly loach
Butterfly loach
Hillstream loach
Hillstream Loach
Hillstream Loach
Quick Facts
Scientific NameBeaufortia kweichowensis
Other NamesChinese Hillstream Loach, Hong Kong Pleco, Butterfly Hillstream loach, Chinese Sucker Fish
Aquarium LevelBottom
Best kept asTrios
Lifespan8 to 10 year
Water Parameters
Water TypeFreshwater
PH6.5 - 8.0
GH3 - 10
68 - 75℉
20 - 23.9℃


In the home aquarium, the Hillstream Loach 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.

Tank Mates

1 interesting tank mate ideas for the Hillstream Loach could include:

Saddleback Loach(Homaloptera Orthogoniata)

Sexual Dimorphism

It is relatively easy to determine a male from a female Hillstream Loach.

The males have a stronger colouration and a smaller, slimmer body than the females.

Other Loaches of interest

Bengal Loach(Botia dario)
Blue Botia(Yasuhikotakia modesta)
Chinese Hillstream Loach(Pseudogastromyzon cheni)
Clown Loach(Chromobotia macracanthus)
Dwarf Chain Loach(Ambastaia Sidthimunki)
Fork Tailed Loach(Vaillantella Cinnamomea)
View all Loaches
Date Added: 25/08/2020 - Updated: 19/01/2022 16:28:36