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Breeding / Rarely bred at home
Iridescent shark
Rarely bred at home · Hard

Breeding the iridescent shark

A migratory river spawner; not bred in aquaria but bred commercially in huge ponds on Far Eastern fish farms.

Full species page

Step by step

Pairing

Adults grow over 1 m. Farms use pond groups with hormones.

Breeding tank

Large ponds. Not for home tanks.

What starts it

Hormone injection in farms, season-based.

Eggs and young

Many thousands of eggs on farms; hatch in about 1-2 days.

Raising the fry

Feed fine live food, then pellets. Grow fast.

Common mistakes
  • Buying a small one for a small tank
  • Expecting home spawning
  • Ignoring adult size

Male or female

Females are said to be stockier with lighter patterning, but this cannot be seen at the size usually sold.

Can I breed it in my tank?

  • This species is rarely bred in home tanks.
  • Hard: for experienced breeders.