Breeding / Mouthbrooders
Mouthbrooders · Moderate

Breeding the altifrons eartheater

Substrate-spawning, biparental mouthbrooder: eggs are laid on a flat rock or wood, then usually picked up by the female while the male guards the territory; parents may share or swap the brood later. Sexual maturity takes at least a year.

Step by step

Pairing

Keep a group of 6 and let a pair form, or one male with several females.

Breeding tank

A 300 L tank with a sponge or gentle filter, fine sand to sift, a few rocks and open swimming space.

What starts it

Clean warm water, big regular water changes and varied protein foods.

Eggs and young

Up to about 200 eggs; at 25-28 °C the fry become free-swimming at 8-11 days.

Raising the fry

The brooding parent holds eggs and fry, releasing them at about 1 cm; feed newly hatched brine shrimp.

Common mistakes
  • Coarse or sharp substrate
  • Stressing the brooding fish
  • Infrequent water changes

Male or female

Practically impossible to sex: no external differences have been seen except the female's breeding tube (ovipositor) during spawning. Start with a group and let pairs form.

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.