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Congo Tetra - Phenacogrammus interruptus - XSmall

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The Congo Tetra (Phenacogrammus interruptus) is a beautiful fish that displays a rainbow of iridescent color and elaborate fins. Juveniles are plain silver fish. As they mature, males develop long dorsal fins and long caudal fins with elaborate extensions that project out from the middle. The fins are tipped in white and ripple gracefully as they swim. The upper body is iridescent green to blue, with a copper to gold horizontal band below it. The lower body is iridescent green to silver. Females do not develop the long fins, and generally have duller coloration.

They are a schooling fish that should be kept in groups of 6 or more. Congo tetras are stunning fish that will add color and activity to most community aquariums. They are larger tetras, and may sometimes chase very small fish, but are otherwise peaceful.

Unlike most other tetras, these fish are native to Africa. They prefer a pH that is close to neutral, but can be comfortably be kept in alkaline water as well. Congo tetras will accept most flake and pelleted foods. They also benefit from the occasional treat of frozen brine shrimp and blood worms. Provide plenty of free swimming space, as well as some sheltered areas using plants, driftwood or other decorations.


Common NameCongo Tetra - XSmall
Scientific NamePhenacogrammus interruptus
OriginAfrica (Congo River)
Max Size (in inches)3.25
Community SafeYes
pH Range6.0-8.0
Min Tank Size (in gallons)30
Temperature Range72-78

State Restrictions
Armed Forces Americas
Armed Forces Europe
Armed Forces Pacific
Puerto Rico


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