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Blue Tetra
This is an elongated, laterally compressed fish with a forked caudal fin. The back is dark green to olive while the flanks are blue-green. The flanks are marked with A broad blue stripe that runs from the gill cover through the caudal fin. The belly is lighter blue. The upper part of the iris is bright orange. The fins are colorless. This fish grows to a smaller size of 2” (5 cm) and comes from Peruvian Amazon in South America.
It prefers the middle and top areas of a tank that is at least 10-20 gallon
(38-75 L). The tank should be arranged in dark colors to bring out the
Blue Tetra’s attractive coloration. Use heavy planting along the sides
and rear, but leave open swimming areas in the center. Use dim lighting
and provide a cover of floating plants. The water should be well-oxygenated and have water parameters of pH 5.5-7.5 (6.8), 2-15 dH (8),
with temperatures between 73-79°F (23-26°C).
This is a small, peaceful community fish that should be kept in schools
of five or more. It is also noted to be an active species that should be
kept with species such as Tetras, Corydoras, Apistogramma, small
Loricarids. They thrive best when fed foods such as Flakes; live insect
larvae, small crustaceans, and white worms.
When sexing this fish, note that females are plumper and less colorful
than males otherwise few details are available. Use soft, acidic water and
condition the pair. Females are said to deposit their eggs on the
underside of broad leafed plants. Remove the eggs to a rearing tank
having soft water. Raise the fry like other tetras-on paramecia. There is
little details on breeding this fish although it is feasible.
This species does not ship well so it is best not to order it but rather
purchase from a breeder or have your local pet store order it if it’s
available. Use a good water conditioner before adding new water.
This delicate species requires well-maintained water to survive and
develop its stunning colors.