The Betta splendens, known as the Siamese fighting fish, is one of the most iconic aquarium fish in the world. What many hobbyists don't realise is that breeding them at home is not only possible — it's a deeply rewarding experience.
Setting Up the Breeding Tank
A 20-litre tank is sufficient for breeding. Keep the water shallow — around 15 cm — as Betta fry need to reach the surface easily. Temperature should be stable between 27–29°C. A sponge filter on the lowest setting works best to avoid disturbing the bubble nest.
The Bubble Nest
The male will build a bubble nest at the water surface — this is his way of preparing for fatherhood. Once the nest is complete, introduce the female briefly and watch for courtship behaviour. After spawning, remove the female immediately. The male will tend to the nest and guard the eggs fiercely until they hatch.
Raising the Fry
Eggs hatch in 24–36 hours. The fry become free-swimming after another 2–3 days. At this point remove the male and begin feeding infusoria or micro worms. After 2 weeks, baby brine shrimp can be introduced.