Beaufortia pingi — Species Profile

Beaufortia pingi — Species Profile

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Beaufortia pingi is a refined and understated native loach from the mountain streams of southwestern China.
A soft band of emerald green crosses the mid-body, framed by dark vertical markings at the head and tail, while tiger-like stripes seal its silhouette at the caudal peduncle.
Often mistaken for the “Green Zebra Loach,” the true Bing’s Hillstream Loach is defined by a unique pattern: dark above, dark below, and a single band of green across the center — a living piece of stream camouflage resting quietly on stone.

I. Basic Information

• Common Name: Bing’s Hillstream Loach

• Chinese Name: 秉氏爬岩鳅

• Scientific Name: Beaufortia pingi

• Family: Balitoridae

• Genus: Beaufortia

• Native Range: Mountain streams along the Yunnan–Guangxi border, China

• Maximum Length: 6–7 cm

• Lifespan: 4–5 years under proper care

• Conservation Status: Chinese endemic species; generally protected under fisheries regulations due to strict water quality requirements

II. Natural Habitat

• Forest-shaded mountain brooks and hillside streams

• Substrate of smooth bedrock, slate, and rounded stones, free of silt

• Water temperature: 16–24°C (short-term summer tolerance up to 26°C)

• Crystal-clear water with consistently high dissolved oxygen

• pH 6.5–7.2; soft to moderately soft water

👉 This species is a strict indicator of clean, oxygen-rich stream ecosystems.

III. Morphology and Identification

The pectoral and pelvic fins are modified into powerful suction discs, allowing the fish to anchor firmly to rock surfaces in flowing water.

Key diagnostic pattern features:

• Base coloration grey-white to pale yellow-brown

• Body covered with vertical black bands

• A wide emerald to blue-green zone across the mid-body, extending over one-third of total length

• This green band interrupts the black striping pattern at the center of the body

• Head and anterior region retain broken black vertical bars

• Dorsal and ventral margins continue black striping above and below the green zone

• Tail region shows 4–6 bold, continuous black vertical bars, the most stable identifying feature

Fin characteristics (critical identification point):

• Pectoral, pelvic, and caudal fins edged with pure white translucent margins

• No blue or blue-white gradient present

• The white edging provides high contrast against dark stone backgrounds

All black markings are solid pigment bands; pale regions represent the true ground color.

Distinction from the “Green Zebra” Hillstream Loach

IV. Temperament and Behavior

• Strictly benthic and stone-attached lifestyle

• Mostly inactive during bright daylight; activity increases at dawn and dusk

• Primary feeding by grazing algae and biofilm

• Completely non-aggressive; suitable for group keeping

• Locomotion by fin-assisted crawling and short tail hops

💡 An excellent biological indicator of water quality and ecological stability.

V. Care Difficulty and Suitable Keepers

• Care Level: ★★★☆☆ (Moderately demanding)

Best suited for:

• Aquarists experienced with hillstream or cold-water systems

• Keepers able to maintain temperatures below 28°C long term

• Setups providing strong oxygenation and clean substrates

Not recommended for:

• Beginners

• Warm-climate tanks without temperature control

Primary causes of failure:

• Chronic high temperature

• Organic accumulation in substrate

• Insufficient flow or oxygen

• Inappropriate high-protein feeding

✅ Success formula:
Temperature ≤28°C + High oxygen + Pre-algae-conditioned stones

VI. Aquarium Care Guidelines

1. Tank Size

• Single or pair: 40 cm tank minimum

• Small group (3–5): 60 cm or larger preferred

• Priority on bottom area and stone surface rather than depth

2. Water Parameters

3. Tank Setup

• Substrate: Fine river sand (1–2 mm), 2–3 cm depth

• Hardscape: Extensive smooth rocks and slate, pre-conditioned with algae

• Lighting: Moderate intensity, 6–8 hours daily

• Flow: Directional outlets toward bottom to form slow circulation

💡 Algae-covered stones = permanent natural feeding stations.

VII. Diet and Feeding

• Primary diet: Natural biofilm and algae

Supplementary foods:

• Sinking spirulina wafers

• Spirulina paste

• Blanched spinach (pesticide-free)

Avoid:

• Bloodworms and tubifex

• High-protein carnivorous feeds

• Floating pellets

• Feeding frequency: Small amounts every other day

VIII. Tankmate Principles

Bing’s Hillstream Loach is a peaceful benthic species with no territorial aggression.

Compatibility principles:

• Similar temperature and water requirements

• No competition for rock surfaces

• Non-aggressive behavior

👉 In properly designed hillstream aquaria, it can be combined freely with most gentle stream species.

IX. Conservation and Ethics

• Narrow-range endemic species of southwestern China

• Extremely sensitive to pollution and oxygen depletion

• Listed as generally protected under Chinese fisheries law

Choose responsibly sourced individuals and avoid wild-caught specimens.
Field observation should follow the principle: observe, photograph, and leave undisturbed.

X. Summary

The beauty of Beaufortia pingi lies in ordered contrast:

Grey stone-toned body traced with ink-black bands,
A single emerald ribbon across the flank,
And a tiger-striped tail sealing its signature.

It does not dazzle. It endures.
Anchored to stone, grazing quietly,
Preserving the rhythm of a mountain stream
Within the glass walls of an aquarium.