Has no teeth in its jaws but possesses many long gill
rakers that are used as a sieve for feeding on planktonic
crustaceans like cladocerans, copepods and ostracods.
Also feeds on debris, and other plankton. Appears
to follow the plankton's vertical movements during
the day. Habitat: Pelagic species
which lives in schools near the surface of the water.
Found over soft muddy bottoms. Juveniles inhabit the
lower part of streams in estuaries, and adults are
found more upstream. Reproduction:
Ovaries start to develop in November when the water
level rises. Fractional spawning occurs between February
and April. The female lays down 50,000 to 100,000
eggs according to its weight. Remarks:
Because they are a filter feeder they are not really
suitable for the home aquarium (Grant, Steven 2021).
Chipiri River, Mamore Drainage, Bolivia.