Swordtail Characin (Corynopoma riisei)

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Swordtail Characin

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Swordtail Characin

Corynopoma riisei

95 Litres (25 US G.)

6.4-7.6cm (2.5-3 ")




6.0 - 7.8

22 -28 °C (71.6-82.4°F)

10-20 °d

1:2 M:F

Pellet Foods
Flake Foods
Live Foods

3-5 years



Additional names

Swordtail Characin

Additional scientific names

Stevardia albipinnis, Nematopoma searlesii, Corynopoma veedonii, Stevardia aliata


South America: coastal rivers of Trinidad and northern Venezuela and from the Meta River basin.


Males have more elongated finnage.

Tank compatibility

Will mix will with peaceful and non-nippy community fish. Keep this fish in shoals of 6 or more.


This fish can be a fussy eater and may only accept live or frozen foods such as daphnia and brine shrimp, may be weaned onto flake and pellet food with time.

Feeding regime

Feed once or twice a day.

Environment Specifics

This is a highly active fish so a good sized and laterally long tank should be provided with open swimming space as well as hiding places in tall plants. Does best in soft acidic water.


An active shoaling fish, can be nippy towards one another if kept in pairs or threes.


An unusual Characin, it's body is iridescent and the males have elongated finnage. The males have a caudal organ, a gland on the tail of males which releases pheromones important to reproduction. The males anal fin also has hooks which may also be used during reproduction as he will fertilise the eggs whilst they are still inside the female.


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