TankMatesTankMates
  • Explore
  • Encyclopedia
  • Identifier
  • Tank Planner
  • Tank Mates
  • Games
  • World Map
Sign in
ExploreSpeciesIdentifierPlanner
TankMatesTankMatesFind fish that get along. Plan your tank. See real local prices.© 2026 TankMates · hello@tankmates.io
EncyclopediaFish identifierTank MatesCompareAsk FinnTank PlannerTank templatesPlantsCare libraryBreedingPond FishGamesWorld MapDesign StudioCommunityShops & servicesMy profileNotificationsPremiumPrivacyTermsPicture credits
Breeding / Egg scatterers
White cloud mountain minnow
Egg scatterers · Very easy

Breeding the white cloud mountain minnow

Easy, continuous egg scatterer with no parental care; adults eat eggs, so remove them after 2-3 days.

Full species page

Step by step

Pairing

Buy 6 or more; they pair up easily. Room temperature water is fine.

Breeding tank

20 L tank with a mop or java moss and a sponge filter.

What starts it

Rising temperature and good feeding.

Eggs and young

Eggs hatch in 48-60 hours; fry need infusoria-grade food once free-swimming. No egg count found.

Raising the fry

Feed infusoria or liquid food, then baby brine shrimp. Fry are hardy and grow fast.

Common mistakes
  • Overfeeding
  • No cover for eggs
  • Leaving small fry with adults
Setup blueprint

Home setup

One breeding tank for the white cloud mountain minnow, drawn to scale from the breeding guide.

40 cm long · 20 cm deep25 cm1234
  1. 1
    Breeding tank: 20 L · about 40 × 20 × 25 cm, 20 L from the breeding guide
  2. 2
    Sponge filter and air pump · named in the guide
  3. 3
    Spawning mop · named in the guide
  4. 4
    Java moss · named in the guide

Water: 14–22 °C · pH 6.5–8

A plan from the breeding guide and an adult size of 4 cm. Tank shape is a standard 2 : 1 : 1.2 box, at least 6 adult lengths long. Check each step in the guide above.

Setup blueprint

Business setup

A 120 cm rack for breeding the white cloud mountain minnow in numbers.

1223120 cm rack, 3 shelves
  1. 1
    2 breeding tanks, 20 L each · about 40 × 20 × 25 cm, set up like the home tank
  2. 2
    4 grow-out tanks, 54 L each · about 55 × 30 × 35 cm; twice the breeding tank, never smaller than this species' smallest tank
  3. 3
    Shared air pump and air line · one line along each shelf feeds a sponge filter in every tank

In total: 6 tanks, about 256 L of water. A litre of water weighs about 1 kg, so check that the floor and rack can take the weight.

Sizes are worked out from the breeding tank in the guide. Tanks fit a standard 120 cm rack when they can; bigger tanks go on their own stands.

Male or female

Males are slimmer and more colourful; mature females are rounder-bellied and often a little larger.

Can I breed it in my tank?

  • Use a separate small tank with a sponge filter and spawning mops, so the eggs aren't eaten.
  • Good for a first breeding project.

Day-by-day plan

Typical for egg scatterers

  1. 14 days beforeCondition the parents

    Feed live or frozen food twice a day. Keep males and females apart if you can.

  2. Day 0Spawning

    Eggs are scattered over mops or fine plants, often at first light. Remove the parents straight after.

  3. Day 1Eggs hatch

    Most eggs hatch in 1–2 days. Keep the tank dim and remove white (fungused) eggs.

  4. Day 4Free swimming, first food

    Fry use up the yolk and start swimming. Feed infusoria or liquid fry food several times a day.

  5. Day 8Baby brine shrimp

    Switch to newly hatched brine shrimp or microworms. Start small, daily water changes.

  6. Day 21Crushed flake

    Add finely crushed flake. Sort fry by size so the big ones don't eat the small ones.

  7. Day 60Ready to move

    Most small fish reach about 2 cm in 2–3 months and can join the main tank.

A general guide for this breeding type. Days change with temperature and species.

Simulator: guided

Stage 1 of 7Condition the parents

Feed live or frozen food twice a day. Keep males and females apart if you can.

Simulator: try it yourself

Set up a virtual breeding tank and see what would likely happen.

No spawning
  • Without live or frozen food the parents aren't in breeding condition.

An educational estimate from the breeding rules, not a promise.