Tanichthys albonubes (Long-fin White Cloud Mountain Minnow)

21 June 2026

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The Long-fin White Cloud Mountain Minnow, often known as the Meteor Minnow, is a stunning, selectively bred variety of a beloved aquarium classic. Renowned for its flowing, veil-like fins and peaceful demeanor, this hardy, cold-water species is incredibly popular among both novice and experienced aquarists looking for an active schooling fish.

Tanichthys albonubes (Long-fin White Cloud Mountain Minnow)

Overview

The Long-fin White Cloud Mountain Minnow, sometimes referred to as the Meteor Minnow, is a spectacular captive-bred variant of the standard White Cloud Mountain Minnow. It possesses all the hardy, adaptable traits of its wild-type counterpart but is distinguished by its magnificent, flowing fins. Because it thrives in cooler water, it is an ideal candidate for unheated aquariums and heavily planted nano tanks.

Image of cardinalfish veil tanichthys albonubes long fin

Distribution and Habitat

While the standard Tanichthys albonubes originates from the clear, slow-moving streams of the White Cloud Mountain area in Guangdong, China, the long-fin variety is exclusively a product of selective breeding in the aquarium trade. In the wild, their natural habitats are heavily vegetated, sub-tropical waterways with cooler temperatures than typical tropical environments.

Description of Long-fin White Cloud Mountain Minnow

This species is a true gem in the aquarium, combining subtle iridescence with striking finnage.

Body shape:

They possess a slender, streamlined, and torpedo-like body typical of many small cyprinids.

Color:

The body exhibits a bronze to brownish-silver base, highlighted by a prominent iridescent horizontal stripe running from the eye to the caudal peduncle, often shimmering in pink, blue, or silver.

Barbels:

Like other White Cloud Mountain Minnows, they completely lack barbels.

Snout:

The snout is slightly pointed, featuring an upturned, terminal mouth adapted for capturing small insects and zooplankton from the water column.

Eyes:

Their eyes are relatively large, often displaying a faint silvery or reddish rim along the top.

Fins:

This is the defining feature of the long-fin variety. The dorsal, anal, and pelvic fins are significantly elongated and veil-like, often edged with striking bands of white, yellow, and red.

The Tail:

The caudal fin is deeply forked and extended, featuring a distinct, bright red spot at its base that fades into translucent or reddish trailing edges.

Temper

They are exceptionally peaceful and completely harmless to other tank mates, making them a perfect addition to a community setup.

Sociality

Highly gregarious, these minnows are schooling fish that must be kept in groups of at least six, though ten or more is highly recommended to encourage natural behaviors and reduce stress.

Activity

They are very active, constantly darting around the middle and upper levels of the water column. Males frequently engage in harmless, beautiful sparring displays, flaring their long fins to establish dominance and impress females.

Keeping and Caring for Long-fin White Cloud Mountain Minnow

This fish is incredibly hardy and forgiving, making it an excellent choice for beginners, provided their preference for cooler water is respected.

Tank size:

A minimum tank size of 10 gallons is suitable for a small school, though larger tanks offer more swimming space for their active nature.

Water Parameters:

They are adaptable to a wide range of conditions but prefer clean, well-oxygenated water.

Temperature

They thrive in sub-tropical temperatures between 14-22°C (57-72°F). Keeping them in unheated tanks often extends their lifespan and enhances their colors.

pH

A pH range of 6.0 to 8.0 is perfectly acceptable.

Hardness

They tolerate a wide range of water hardness, generally between 5 and 19 dGH.

Ammonia, Nitrite, Nitrate

Ammonia and Nitrite must always be at 0 ppm. Nitrates should be kept below 20 ppm through regular water changes.

Lighting

Moderate lighting is ideal to highlight their iridescent stripes and colorful fin tips, especially when filtered through floating plants.

Water flow

A gentle to moderate water flow mimics their natural stream habitat and encourages their active swimming behavior.

Decorations and Plants

A heavily planted aquarium with a dark substrate, driftwood, and rocks provides the best environment. Floating plants can help dim the light and make them feel secure.

Diet

They are omnivorous micro-predators. In the aquarium, they readily accept high-quality crushed flakes, micro-pellets, and freeze-dried foods. Supplementing their diet with live or frozen foods like daphnia, baby brine shrimp, and bloodworms will keep them in peak condition.

Some Feeding Tips

Feed them small amounts once or twice a day, ensuring they consume everything within a few minutes to prevent water fouling.

Breeding

Breeding is straightforward, as they are continuous egg-scatterers. To maximize fry survival, set up a separate breeding tank with a sponge filter, dim lighting, and plenty of spawning mops or dense moss (like Java Moss). Condition the adults with live foods, and once eggs are scattered, remove the parents to prevent them from eating the eggs and fry.

Conclusion

The Long-fin White Cloud Mountain Minnow is a visually stunning, undemanding, and lively addition to the cold-water aquarium. Their elegant finnage and active schooling dynamics provide endless entertainment, making them a highly rewarding species for aquarists of all skill levels.

Fish info

Care level: Easy
Temperament: Peaceful
Adult size: 4 cm
Life expectancy: 3-5 years
Fish type: Cyprinid
Temperature : 14-22°C
pH: 6.0-8.0
Color Form: Brown, Red, Silver, White

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