Paradise Fish On A Dark Background

Paradise Fish

Scientific name: Macropodus opercularis

The Paradise Fish is a vibrant and hardy freshwater species native to East Asia, particularly China, Taiwan, and Vietnam. Known for its striking colors, with hues of blue, red, and green, this labyrinth fish can breathe atmospheric air, making it adaptable to a variety of water conditions.

  • Known for their striking colors
  • Easy to care for
  • Suitable for both experienced and moderately skilled aquarists
  • Can tolerate a wide range of water conditions

IUCN Red List of Threatened Species : Least Concern

Paradise Fish belong to the gourami family and, like their relatives, possess a labyrinth organ, allowing them to breathe atmospheric air. This makes them more tolerant of low-oxygen environments compared to many other fish species.

In the wild, they are found in slow-moving or stagnant waters such as ponds, rice paddies, and ditches, where they feed on insects, larvae, and small invertebrates.

Their ability to survive in a range of water conditions makes them a resilient species in both their natural habitat and home aquariums.

In addition to their striking appearance and adaptability, Paradise Fish are known for their complex behaviors. Males are territorial and often exhibit aggressive displays to establish dominance, especially during breeding season.

Paradise Fish

Navite Location

East Asia (China, Taiwan, and Vietnam)

Varieties

Blue / Albino / Black

Suggested Tank Mates

Zebra Danios / Corydoras Catfish / Bristlenose Pleco / Cherry Barbs

Tank Mates to Avoid

Bettas / Gouramis / Tiger Barbs / Cichlids / Angelfish

Diet

Flake Food / Pellets / Brine Shrimp / Daphnia / Blood Worms

Breeding

Bubble Nest / Hatching 24-48 hrs / 3-5 days until swimming

Lifespan

5 to 8 years

Size

6 to 7.5 cm (2.5 to 3 in)

Minimum Tank Size

75 Liters (20 gallons)

Optimum Tank Temperature

21°C to 28°C (70°F to 82°F)

Ideal pH Level

6.0 to 8.0

Water Hardness

5 – 30 dGH

Common Health Issues

Ich (White Spot) / Fin Rot / Velvet Disease / Swim Bladder Disorder / Bacterial Infections / Obesity and Digestive Problems

Interesting facts

Early Aquarium Fish

Paradise Fish were one of the first tropical fish species introduced to the aquarium hobby in Europe, dating back to the 19th century. Their hardiness and striking colors made them popular among early fishkeepers, even before modern heating equipment was available.

Labyrinth Organ

Like other labyrinth fish, Paradise Fish have a special organ that allows them to breathe atmospheric air. This adaptation enables them to survive in low-oxygen environments, such as stagnant ponds or poorly aerated aquariums.

Territorial and Aggressive

Male Paradise Fish are highly territorial, especially during breeding. They will often fight with other males and can be quite aggressive towards similarly sized or slower-moving fish. This behavior is a natural defense mechanism to protect their territory and offspring.

Unique Bubble Nests

Male Paradise Fish build bubble nests to care for their eggs after spawning. They blow bubbles that float at the water’s surface and place the fertilized eggs in the nest, where the male then guards them until they hatch.

Color Changes During Courtship

Male Paradise Fish intensify their coloration during courtship and breeding. Their colors become more vivid to attract females and to display dominance over rival males. This bright display is an important part of their mating ritual.

Temperature Tolerance

Unlike many tropical fish, Paradise Fish can tolerate a wide range of temperatures, from cooler waters around 60°F (15°C) to warmer waters above 80°F (27°C). This adaptability makes them more resilient in changing environments.