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Breeding / Livebearers
Endler's livebearer
Livebearers · Very easy

Breeding the endler's livebearer

Livebearer that breeds continuously; it crossbreeds with guppies to give fertile young, so keep it apart from guppies to keep strains pure.

Full species page

Step by step

Pairing

Buy 1 male and 2-3 females; keep strains pure by not mixing with guppies.

Breeding tank

20-40 L tank with plants and a sponge filter.

What starts it

No trigger needed; females give birth about monthly.

Eggs and young

5-25 young per brood, depending on the female's age and size; new broods every 23-24 days.

Raising the fry

Fry are born ready to eat. Feed crushed flake, baby brine shrimp and microworms several times a day. Separate fry from adults or use plants as cover. Sort by size and sex early.

Common mistakes
  • Mixing with guppies
  • Overcrowding
  • Weak selection
Setup blueprint

Home setup

One breeding tank for the endler's livebearer, drawn to scale from the breeding guide.

40 cm long · 20 cm deep25 cm12345
  1. 1
    Breeding tank: 20 L · about 40 × 20 × 25 cm, 20–40 L from the breeding guide
  2. 2
    Sponge filter and air pump · named in the guide
  3. 3
    Heater, 24–28 °C · this species' normal range
  4. 4
    Plants for cover · named in the guide
  5. 5
    Breeding box · keeps newborn fry away from the adults; typical for this breeding type

Water: 24–28 °C · pH 7–8

A plan from the breeding guide and an adult size of 2 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 endler's livebearer in numbers.

12234120 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, 41 L each · about 50 × 25 × 30 cm; twice the breeding tank, never smaller than this species' smallest tank. Sort the young by size and sex here
  3. 3
    Shared air pump and air line · one line along each shelf feeds a sponge filter in every tank
  4. 4
    Heat the room or each tank · 24–28 °C

In total: 6 tanks, about 204 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

♂Male
♀Female
  1. 1
    Size
    • MaleSmaller
    • FemaleLarger
  2. 2
    Colour
    • MaleFar more colourful
    • FemalePlain
  3. 3
    Anal fin
    • MaleA gonopodium
  4. 4
    Body shape
    • FemalePlumper

Tip: Colour and anal fin

From the checked notes: “Males are smaller and far more colourful, with a gonopodium; females are larger, plain and plumper.” Numbers sit on the part of the body each difference is about. Tap a picture to see it bigger.

Can I breed it in my tank?

  • Good for a first breeding project.

Day-by-day plan

Typical for livebearers

  1. 28 days beforePregnancy

    A dark 'gravid spot' grows behind the belly. Gestation is usually about 4 weeks.

  2. Day 0Birth

    Fry are born ready to swim. Thick plants or a breeding box keep them safe from adults.

  3. Day 0First food

    Feed crushed flake, baby brine shrimp or microworms 3–5 times a day.

  4. Day 28Sexing starts

    Males start to show color and a pointed anal fin. Separate them if you want to control lines.

  5. Day 90Adults

    Most livebearers are grown and can breed at about 3 months.

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

Simulator: guided

Stage 1 of 5Pregnancy

A dark 'gravid spot' grows behind the belly. Gestation is usually about 4 weeks.

Simulator: try it yourself

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

About 5 young raised15% of fry survived
  • The female gave birth.
  • With no plants or breeding box, the adults ate most of the fry.

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