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Flagtail Prochilodus

Semaprochilodus Isignus

The Flagtail Prochilodus is an active, silver-bodied fish with a red-black flag tail. Peaceful and hardy, great for large tanks and natural algae control.

Regular price $149.99 NZD
Size

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  • North Island : $28.99
  • South Island: $38.99

Non-Rural New Zealand Addresses Only.

Live Fish Guarantee Policy

We stand behind the health of every fish we ship. That’s why we offer a Live Arrival Guarantee on all orders shipped via overnight or two-day delivery.

To qualify for a refund or replacement in the rare case of a DOA (Dead on Arrival), the following conditions must be met:

  • within the expected time frame (overnight or two-day service).
  • unopened bag must be provided within 1 hour of delivery.
  • Someone must be present to receive the package at the time of delivery.

This guarantee is void if:

  • The package is delayed beyond the expected delivery time
  • The shipping address is incorrect or incomplete
  • The package is left outside unattended, especially in extreme weather conditions
  • The bag has been opened prior to video documentation

We do not cover losses due to courier delays, missed deliveries, or improper acclimation after opening.

We care deeply about the well-being of our fish and your experience as a customer. Please refer to our Acclimation Guide and Shipping Policy for more information.

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Flagtail Prochilodus (Semaprochilodus insignis)

The Flagtail Prochilodus is a large, peaceful schooling fish known for its striking silver body and bold red-and-black “flag” patterned tail. Native to the Amazon and Orinoco river basins, it is a popular choice for large tropical aquariums thanks to its constant movement, active grazing, and impressive coloration.

This species can grow up to 30–35 cm and should be kept in a spacious tank of at least 450 litres. They thrive in groups of 5 or more, and a long tank with strong filtration, good oxygenation, and open swimming space is ideal. A soft sand or fine gravel substrate with some driftwood and smooth rocks will replicate their natural environment.

Flagtail Prochilodus are herbivores and detritivores—perfect for helping control algae and leftover food. Feed them a balanced diet of spirulina wafers, algae pellets, blanched greens (such as spinach or zucchini), and occasional treats like bloodworms or brine shrimp.

This species is peaceful and mixes well with other large, non-aggressive fish such as silver dollars, bala sharks, larger tetras, and plecos. However, they may show mild aggression toward their own kind if not kept in a group.

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