🐟 AquaticCare difficulty: BeginnerLegal complexity: Low
White cloud mountain minnow
Tanichthys albonubes · also called White cloud, Poor man's neon, Canton danio, Cardinal minnow
A hardy, coolwater shoaling minnow with a glowing lateral stripe and red-tipped fins, often called the 'poor man's neon tetra.' One of the few popular aquarium fish that thrives without a heater.
Educational only. KinStation content is reviewed by licensed veterinarians but cannot replace an in-person exam. Always consult a licensed veterinarian or board-certified specialist for diagnosis, treatment, or any decision affecting your pet's health.
🩺 Need expert help with your white cloud mountain minnow?
Connect with a specialist near you or ask a licensed vet — never substitute online guidance for hands-on care in an emergency.
Quick facts
| Size | Small; about 3-4 cm (1.2-1.6 in) total length. |
| Lifespan | 3–7 years |
| Social needs | group |
| Native region | East Asia (southern China, Guangdong; historically the White Cloud Mountain near Guangzhou, plus Vietnam) |
| Origin | Old World |
| Climate | ⛅ Subtropical |
| Water type | 💧 Freshwater |
| Family | Cyprinidae |
| Genus | Tanichthys |
Part of the Danios
Lively, hardy cyprinids — from tiny nano jewels to fast mid-water shoalers — that do best in active groups and tolerate a range of temperatures, including cooler subtropical setups.
Habitat & space requirements
From the minimum an animal needs to be kept humanely, up to the ideal setup. Bigger is almost always better — minimums are floors, not targets.
Life & growth stages
How this animal changes through its life — each stage often has its own care, diet and space needs.
Color & pattern variants
Natural variants occur in the wild; selectively bred (man-made) variants were developed in captivity.
Habitat & enclosure
A group is well suited to a planted aquarium of at least 40-60 L (around 10-15 gallons), with length for swimming. Provide a dark substrate, plants, and some current to mimic their cool, fast-flowing hill-stream origins; a secure lid is wise as they can jump. They tolerate and even prefer cooler temperatures, so a heater is usually unnecessary in a normal room.
Unlike most tropical aquarium fish, white clouds are a subtropical, coolwater species that thrives at about 18-22 C (64-72 F) and tolerates a broad range down to the mid-teens C; sustained tropical warmth above roughly 24 C shortens their lifespan and fades their color. They accept a wide pH (about 6.0-8.0) and are very forgiving of hardness, making them ideal for unheated tanks and seasonal outdoor ponds in temperate climates.
Substrate
Fine gravel or sand works well, and a dark substrate enhances their red-and-iridescent coloration. A planted layout mimics their cool mountain-stream origins.
Equipment & setup
A gentle sponge or hang-on-back filter providing light current; notably, no heater is needed, as they thrive at cooler 60-72F room temperatures and can even tolerate down near 50F. Standard lighting and a lid are sufficient.
Diet
White clouds are omnivorous micro-predators and undemanding feeders. Offer quality flakes and micro-pellets as a staple, with live and frozen foods such as daphnia, baby brine shrimp, cyclops, and mosquito larvae.
Feed small amounts once or twice daily. They feed mainly at the surface and mid-water; a varied diet brings out the red in their fins and the iridescence of their stripe.
Behavior & temperament
This is a peaceful, active shoaling fish best kept in groups of at least 8-10, where males display vivid color while sparring harmlessly for attention. In adequate numbers they are bold and constantly on the move in the open water.
Their coolwater needs make them excellent companions for other subtropical species such as hillstream loaches, certain shrimp, and small gobies, rather than warm-water tropicals. A current to swim against and a planted, open layout provide natural enrichment.
Health
White clouds are exceptionally hardy and among the most forgiving aquarium fish, which is why they are recommended for beginners. The main welfare error is keeping them too warm long-term, which stresses them, dulls their color, and reduces lifespan; chilling is rarely a problem.
They can still suffer ich, fin rot, and bacterial infections if stressed or kept in poor water, so maintain clean, stable conditions and an adequate group. Quarantine new fish and avoid prolonged tropical temperatures to keep them healthy and long-lived.
Tips, DIY & hacks
These are excellent unheated or subtropical-tank fish and make a great choice for cooler rooms where tropical species would struggle. Keep a school of 8+ to encourage males to display their best breeding colors, and they will readily spawn in a densely planted tank with no special intervention.