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Breeding / Mouthbrooders
Mouthbrooders · Moderate

Breeding the frail gourami

Paternal mouthbrooder, not a bubble-nester. The female usually starts courtship; the pair spawn almost upright, the male catches the eggs in his anal fin and the female spits them to him. The brooding male hides and barely eats.

Full species page

Step by step

Pairing

Condition pairs with live food.

Breeding tank

100 L planted tank with floating plants, 22-26 C.

What starts it

Live food conditioning and a cooler water change.

Eggs and young

The male holds eggs and fry for 7-20 days, then releases 10-100 free-swimming young big enough for microworm or Artemia nauplii, fed at the surface.

Raising the fry

Newly hatched brine shrimp from day 3.

Common mistakes
  • Strong flow
  • Housing with tiny fish
Setup blueprint

Home setup

One breeding tank for the frail gourami, drawn to scale from the breeding guide.

70 cm long · 35 cm deep40 cm12345
  1. 1
    Breeding tank: 100 L · about 70 × 35 × 40 cm, 100 L from the breeding guide
  2. 2
    Sponge filter and air pump · gentle and safe for eggs and fry
  3. 3
    Heater, 22–26 °C · temperature from the breeding guide
  4. 4
    Floating plants · named in the guide
  5. 5
    Plants for cover · named in the guide

Water: 22–26 °C · pH 5–7.5

A plan from the breeding guide and an adult size of 10 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 frail gourami in numbers.

12234120 cm rack, 3 shelves
  1. 1
    1 breeding tank, 100 L · about 70 × 35 × 40 cm, set up like the home tank
  2. 2
    2 grow-out tanks, 200 L each · about 85 × 45 × 50 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
  4. 4
    Heat the room or each tank · 22–26 °C

In total: 3 tanks, about 500 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

Hard to sex, especially when newly imported. Males have a slightly rounded lower jaw from stretchy throat skin used to hold the brood; females have a straight lower jaw and a more pointed head.

Can I breed it in my tank?

  • Takes some experience.

Day-by-day plan

Typical for mouthbrooders

  1. 21 days beforeGroup and condition

    Usually one male with several females. Feed high-quality food.

  2. Day 0Spawning

    The female takes the eggs into her mouth and stops eating.

  3. Day 21Release

    After about 3 weeks the female releases fully formed fry. Many breeders move her to a quiet tank first.

  4. Day 21First food

    Fry eat crushed flake and baby brine shrimp straight away.

  5. Day 90Grow-out

    Fry are a few centimetres long after about 3 months.

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

Simulator: guided

Stage 1 of 5Group and condition

Usually one male with several females. Feed high-quality food.

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.