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Paradise Fish

paradise fish

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Scientific Name:   Macropodus opercularis      
Min. Tank Size:   30 gallons      
Personality:   Can be aggressive      
Temperature:   61-80°F      
pH:   6.0-8.0/5-20°dGH      
Size:   4"      
Diet:   Omnivore      
Breeding:   Egglayer      


Best kept in a species tank; may be kept with fast-moving larger Cyprinids or Characins since smaller slower-moving fish will be eaten!

Paradise Fish

These fish are believed to be one of the first ornamental species made available to aquarium hobbyists in the Western world. Paradise Fish can be found in rice paddies, streams and marshes throughout East Asia. These fish have a natural range that includes parts of Laos, Vietnam, Malaysia, China, Taiwan and Japan. Because their native habitat includes slow-moving waters, Paradise Fish should be kept in tanks with low water movement. A sponge filter or power filter with a low setting is usually sufficient.

Tank Set-up

Paradise Fish are known for being combative and aggressive. These fish can change color in response to various stimuli and may display a range of colorations from vibrant orange to bright blue. A planted tank is recommended for this species of fish because such an environment provides plenty of cover for other tank inhabitants and also mimics the natural environment of the Paradise Fish. This species can tolerate a wide range of temperatures but is most likely to thrive in warm, slightly acidic water.


In the wild, these fish are omnivorous but they tend to eat more meat-based foods than vegetable matter. In captivity, Paradise Fish should be offered a staple diet of high-quality dried foods supplemented with plenty of small live and frozen foods such as bloodworms, Artemia and Daphnia.


Breeding Paradise Fish is not especially difficult and, like most Anabantids, they are bubble nesters. Paradise Fish are most likely to breed in a bare-bottom tank outfitted with fine-leaved and floating plants. The male of the species will build a bubble nest along the surface of the tank or among the plants then transfer the eggs to the nest after spawning to guard them until they hatch.

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