Should I buy it?
White Cloud Mountain Minnow
Tanichthys albonubes
Also known as: white cloud, canton / meteor minnow
A cold-water schooler that thrives unheated at 14–22 °C. Often sold as a 'beginner' fish; fundamentally incompatible with standard tropical setups.
White Cloud Mountain Minnow tank mates · 40L tank size hub
peaceful · beginner care
Sources & confidencehigh · partially verified · beginner: excellent
Checked against several solid care sources that mostly agree. Numbers here are a careful starting point. Your tap water, tank size, and habits decide the rest. How we evaluate.
Best for: Unheated or lightly heated tanks 40L or more kept at 18–22 °C, or outdoor pond setups in temperate climates.
Avoid if: Your tank runs above 24 °C or you keep standard tropical fish (neons, tetras, gouramis) that require warmer water.
Common mistakeKeeping white clouds in a heated tropical tank at twenty-six degrees is how keepers invent bacterial infections and appetite loss within weeks. They are cool-water fish. Plan an unheated or gently cool community — tropical defaults are the wrong template for Tanichthys albonubes.
Top things that go wrong
- Group welfare — not a solo display fish. Plan at least **6** together for normal behaviour; smaller groups often mean stress, colour loss, or nipping depending on species.
- Shrimp & snails. Cherry shrimp and other dwarfs can coexist with peaceful small fish; baby shrimp are food for almost anything that finds them.
What most shops don't tell you
- 1.Myth: white cloud mountain minnows thrive in any heated tropical community because they are hardy beginner fish. Reality: sustained tropical heat stresses them toward infection and appetite loss — keep them cool with a real school, not in a twenty-six-degree mixed tropical tank.
- 2.Buying three or four to start. White Cloud Mountain Minnow settles in a group of 6 or more. An understocked school sulks at the back of the tank and loses colour within a fortnight.
- 3.Prefer 14 to 22 °C. Not safe with tropical fish that need 26 °C or more. A heater is not required in a temperate room. Forgiving in tap water.
About this species
White cloud mountain minnows are small Chinese cyprinids that school in cool water. A red-tipped tail and blue-green lateral stripe mark each fish. They handle 14 to 22 °C, cooler than most tropicals.
- Celestial Pearl Danio30L min · same group, comparable tank size
- Cherry Barb60L min · same group, similar adult size
- Chili Rasbora20L min · same group, similar adult size
- Dwarf pencilfish60L min · same group, similar adult size
- Harlequin Rasbora60L min · same group, similar adult size
- Lambchop / Espei rasbora60L min · same group, similar adult size
- Zebra Danio60L min · same group, similar adult size
- Golden / Beckford's pencilfish80L min · same group, similar adult size
- Amano Shrimpalso beginner peaceful, similar tank size
- Assassin Snailalso beginner peaceful, similar tank size
- Beckford Pencilfishalso beginner peaceful, similar tank size
- Black Neon Tetraalso beginner peaceful, similar tank size
- Black phantom tetraalso beginner peaceful, similar tank size
- Bloodfin tetraalso beginner peaceful, similar tank size
- Dojo / weather loach tank mateslists this fish among its recommended pairings
- Hillstream Loach tank matesnames this fish as a conditional pairing — read the pair page conditions
- Paradise fish tank matesnames this fish as a conditional pairing — read the pair page conditions
- Pearl Danio tank mateslists this fish as a safe and recommended mate
Plan grid
Key limits are above. Here: pH band, swim level, bioload, and activity.
Swim zones
Care snapshot
Quick compare before you buy. Not a score of how “good” the fish is.
- Beginner ease82
- Peacefulness90
- Community fit72
- Small-tank fit100
- Hardiness72
- Energy86
Numbers are deterministic planning indices from Fishori fields — not a scientific score of your individual fish.
Example setups
Starting points only. Run the pair checker for every fish you add.
Prioritise 6+ of White Cloud Mountain Minnow in 40L+ with filtration sized for messy feeding — add only mates that already pass pair checks with this species.
Compatibility
Tank mates for White Cloud Mountain Minnow
Usually safer (engine GOOD): Zebra Danio. Conditional (CAUTION — read the pair page before buying): Cherry Barb, Corydoras Catfish. Avoid (RISKY): Betta, Discus, Oscar. Every name links to a live pair check — the lists are a shortlist, not a stocking plan.
Usually safer
Open a pair page with this fish as the starting point.
Needs planning
Read the blocking rule on each pair page before experimenting.
Usually avoid
Do-not-stock combinations on conservative hobby rules.
Compare with
Run a real pair check: White Cloud Mountain Minnow + Zebra Danio
- Try Zebra Danio — open the pair check.
Behaviour and temperament
White cloud mountain minnows are peaceful active schoolers that stay healthier in cooler water with six or more. They do not bully robust neighbours. Stress shows as clamping, appetite loss, and disease when forced into sustained tropical heat with only a token group.
What sets them off
- Sudden crowding
- Poor water quality
Fin nipping: Not a habitual fin-nipper; stressed or crowded individuals can still test fins.
Predation: Not a predator toward similarly sized community fish; fry and dwarf shrimp are still fair game for most species.
Territory: Not strongly territorial, but still needs room so its working space does not overlap the next fish.
Planted tanks: excellent — easy plant ideas
In the glass: typical and warning signs
- Six or more cruise midwater in cooler open water with gentle current.
- Active schooling after a fright is normal — give length to reform.
- Appetite loss at tropical temperatures usually means heat failed first.
- A scattered handful needs more of their own kind before a different staple.
- Low listed risk as aggressors.
- Large tropical predators are the usual failure modes — not minnow malice.
- Lower or remove tropical heating before chasing mystery bacterial cures only.
- Grow the school before adding another cool-water species to fix shyness.
Fish behaviour can vary between individuals and tank setups. Always observe new fish closely after introduction.
Water, food, and grouping
Hardness
soft
Diet
omnivore
White cloud mountain minnows are cool-water omnivores that take quality flake or micro-pellets plus fine frozen foods in a school of six or more. Tropical heated schedules leave them stressed even when food is correct. Feed what the school finishes in cooler open water, and never treat them as standard twenty-six-degree community dither.
Shrimp & snails
Cherry shrimp and other dwarfs can coexist with peaceful small fish; baby shrimp are food for almost anything that finds them.
Schooling species — buy 6+ together. Smaller groups stress and lose colour.
- Hold 14 to 22 °C steadily on a real thermometer, not the dial on the heater.
- Aim for pH 6 to 8 and a hardness you can re-test in two weeks. A one-time strip in the shop car park is not a water test.
- Schooling species. Buy 6 or more from the same tank on the same day before adding any centrepiece fish.
- Tank volume meets or exceeds 40L published minimum for adults.
- You can stock at least 6 individuals (group welfare).
- Heater can hold 14–22°C without cooking cooler-water tank mates.
Explore and stocking hubs
Tank-mates hub, matching guides, category peers, and litre stocking lists around this species’ minimum tank.
Plan with tools
Check mates as pairs first, then add this fish in the tank builder for the full stocking.
Filtration & heating
A 40L minimum tank needs a filter rated for at least 160L/hr turnover and a heater to hold 14–22°C reliably.
Plant suggestions
White Cloud Mountain Minnow does well in planted tanks. Plants compatible with 14–22°C and pH 6–8:
Research: partially verified · Confidence: high · 3 linked source(s). We do not invent citations.
How Fishori evaluates compatibility (same logic as pair and tank tools).
- Seriously Fish. Tanichthys albonubes
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Tanichthys albonubes
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Tanichthys albonubes
Secondary: general species context; verify all husbandry numbers against a dedicated aquarium care sheet and your test kit, not a single table row.
Evidence notes
- The Seriously Fish profile for the binomial in this record was successfully reached as the primary aquarium reference.
- FishBase contributes natural-range size and habitat context. Translate those numbers through your heater, your water report, and your tank footprint before stocking.
- Wikipedia is only cited if the article URL returned OK. Use it for orientation, not as the only care sheet for an import.
- All compatibility text reflects typical hobby experience and the Fishori model. Individual fish, shop stress, and the order tank mates are added in can still defy a single-paragraph label.
Common questions about White Cloud Mountain Minnow
- How big do White Cloud Mountain Minnow get?
- White Cloud Mountain Minnow adults reach about 4 cm. Shop fish look smaller; stock for the adult length.
- What size tank does White Cloud Mountain Minnow need?
- 40L is the planning floor for adult swimming space and bioload. A 49L+ tank is the more comfortable long-term footprint. Length and depth matter as much as raw litres for active or territorial fish.
- Are White Cloud Mountain Minnow aggressive?
- White cloud mountain minnows are peaceful active schoolers that stay healthier in cooler water with six or more. They do not bully robust neighbours. Stress shows as clamping, appetite loss, and disease when forced into sustained tropical heat with only a token group.
- Do White Cloud Mountain Minnow need to be kept in a group?
- Schooling species — buy 6+ together. Smaller groups stress and lose colour.
- What is the most common mistake with White Cloud Mountain Minnow?
- Keeping white clouds in a heated tropical tank at twenty-six degrees is how keepers invent bacterial infections and appetite loss within weeks. They are cool-water fish. Plan an unheated or gently cool community — tropical defaults are the wrong template for Tanichthys albonubes.
- What fish can live with White Cloud Mountain Minnow?
- The White Cloud Mountain Minnow profile lists Zebra Danio among its safer pairings (engine-checked GOOD). Cherry Barb, Corydoras Catfish are conditional (CAUTION): workable only with the specific conditions on each pair page. Avoid Betta, Discus, Oscar (RISKY). Run the pair checker for your exact water and tank size before stocking.