Freshwater Tropical Fish: Flagtail Prochilodus For Sale

Flagtail Prochilodus, Small

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$29.99

MSRP: $35.00

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Weight:

2.00 LBS

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Flagtail Prochilodus - Semaprochilodus insignis

The Flagtail Prochilodus is a large, active freshwater fish admired for its bold appearance and lively behavior. Native to the rivers and tributaries of South America, this species is instantly recognizable by its silver body, horizontal dark stripes, and striking tail fin adorned with vivid red and black bands—hence the name "Flagtail."

Flagtail Prochilodus are energetic swimmers and do best in spacious aquariums with strong filtration and plenty of open swimming space. They are schooling fish in the wild, so they feel most comfortable when kept in small groups. Their constant grazing behavior helps control algae, though they should be supplemented with a varied diet of algae wafers, fresh vegetables, and quality prepared foods.

While generally peaceful, their large size and active nature mean they are best housed with similarly sized tankmates. A secure lid is recommended, as these fish are known to be powerful jumpers.

Scientific Name: Semaprochilodus insignis
Common Name: Flagtail Prochilodus
Temperament: Peaceful but active
Adult Size: Up to 15–18 inches
Diet: Primarily herbivore (algae, plant matter, supplemented with sinking pellets and veggies)
Water Conditions: 72–82°F, pH 6.0–7.5
Compatibility: Best with medium to large peaceful fish; avoid very small tankmates

With its vibrant tail and dynamic presence, the Flagtail Prochilodus makes an impressive showpiece for experienced aquarists with large aquariums.

Size is about 1.5-2.5 inches or so. Very active and an awesome addition to many tanks! They are great at grazing and even help keep the aquarium walls clean.