Breeding / Rarely bred at home
Rarely bred at home · Moderate

Breeding the blue tetra

Now bred in aquaculture: once rare in the hobby, it has become more widely available as farm production has increased. Acidic water probably helps with breeding.

Step by step

Pairing

Needs a large group in mature, stable conditions; pairing is hard to control.

Breeding tank

Roomy, planted tank with very soft acidic water (pH 5-6.5), subdued light and fine-leaved plants or a spawning mat.

What starts it

Rain-season style changes: soft cool water changes, a small temperature rise and heavy live feeding.

Eggs and young

50-150 eggs

Raising the fry

Infusoria then brine shrimp nauplii; survival is poor without very clean water.

Common mistakes
  • Hard tap water
  • Overcrowding the breeding tank
  • Poor water quality

Male or female

  • Male: Slimmer
  • Female: Rounder
  • View from above

Can I breed it in my tank?

  • This species is rarely bred in home tanks.
  • Takes some experience.