Paradise Fish

The Paradise Fish was among the first tropical or subtropical ornamental fish imported to Europe, arriving in France in 1869. A labyrinth fish from East Asian rice paddies, ditches, and slow streams, it builds a bubble nest and displays spectacular colour during breeding.

Males are territorial with each other and may harass smaller tank-mates, but a species tank with one male and multiple females, or a roomy community with similarly-sized robust fish, works well. They adapt to a wide temperature range — down to 16°C and up to 26°C — making them ideal for unheated rooms.

The species is a labyrinth breather and must have unobstructed access to the surface. Males construct a bubble nest and guard eggs and fry aggressively after spawning.

Water: 16–26°C, pH 6.0–8.0, GH 4–20; tolerates hard and soft water; no heater needed in most homes. Tank: minimum 80 L for a pair; planted with floating plants; tight-fitting lid essential as they jump. Feeding: omnivore — pellets, flake, frozen bloodworm, brine shrimp, and small live invertebrates. Breeding: bubble-nester; male builds nest and guards eggs; remove female post-spawning to prevent aggression. Compatibility: semi-aggressive; avoid small nano fish, long-finned species, and other male paradise fish.