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Phenacogrammus interruptus

Phenacogrammus interruptus
Congo Tetra
Described by Boulenger in 1899, the Congo Tetra is found in the upper Congo Basin in slightly acidic, murky waters similar to those that tetras from South America inhabit. In the aquarium, mimic the natural habitat. The Congo tetra requires soft, peat filtered water and a darker substrate. They are most comfortable in an aquarium with lower light levels. The beautiful rainbow colors of this fish will also show best in lower light levels. These fish are easily frightened by aggressive tank mates and loud noises and may wait for you to leave the aquarium before they will feed. It is a peaceful schooling fish and needs a large aquarium to thrive and develop its full beauty. The Congo Tetra has a typical full-bodied tetra shape with rather large scales. When mature, the iridescent colors of the Congo Tetra run through the fish from front to back, starting with blue on top changing to red through the middle, to yellow-gold, and back to blue just above the belly. It is not its fluorescent colors that make this Tetra so distinct, but rather its tail fin, which develops into a most beautiful grayish violet feathery appendage with white edges.