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Breeding / Egg scatterers
Ornate bichir
Egg scatterers · Hard

Breeding the ornate bichir

Has been bred in aquaria but details are scarce. An egg scatterer that breeds in the rainy season: the male cups his anal fin to receive the eggs, fertilises them and scatters them among plants. Water changes in temperature and chemistry, soft slightly acidic water and dense planting are suggested.

Full species page

Step by step

Pairing

Keep a group and condition them well.

Breeding tank

A large tank or pond with plants and soft light.

What starts it

Seasonal change or hormone injections at farms.

Eggs and young

Probably a few hundred eggs per spawning (FishBase fecundity input 200-300), scattered among plants; eggs hatch in 3-4 days and fry swim freely about 3 days later.

Raising the fry

Larvae have external gills and need tiny live food.

Common mistakes
  • Not enough space
  • Keeping with fish that fit in the mouth
Setup blueprint

Home setup

One breeding tank for the ornate bichir, drawn to scale from the breeding guide.

360 cm long · 40 cm deep45 cm1234
  1. 1
    Breeding tank: 648 L · about 360 × 40 × 45 cm, the guide gives no size, so this is the smallest tank for this species
  2. 2
    Sponge filter and air pump · gentle and safe for eggs and fry
  3. 3
    Heater, 25–28 °C · this species' normal range
  4. 4
    Plants for cover · named in the guide

Water: 25–28 °C · pH 6–8 · soft water

A plan from the breeding guide and an adult size of 60 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 row of tanks on their own stands for breeding the ornate bichir in numbers.

1223
  1. 1
    1 breeding tank, 648 L · about 360 × 40 × 45 cm, set up like the home tank
  2. 2
    2 grow-out tanks, 1,296 L each · about 360 × 55 × 65 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 · 25–28 °C

In total: 3 tanks, about 3,240 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 have a thicker anal fin than females.

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.
  • Hard: for experienced breeders.

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.