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Large-scale Characin

Brycinus macrolepidotus

Also known as: Characin, Imberi

A football-sized African predator that roams rivers from the Nile to the Congo.

Large-scale Characin
AI-generated illustration
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© Google Gemini 2.5 Flash Image · AI-generated

About

The large-scale characin (Brycinus macrolepidotus) is a substantial, torpedo-built predator from intertropical Africa, found across a wide sweep of river systems including the Nile, Congo, Niger, and Volta, though curiously absent from the Gambia basin. In the wild it favors flowing rivers over lakes, and its diet reflects an opportunistic lifestyle. Insects, crustaceans, smaller fish, and even plant matter and debris all end up on the menu. Populations across this vast range show enough morphological variation that researchers recognize distinct regional forms that grade into one another, so specimens from different origins may look subtly different. At nearly 20 inches when fully grown, this is not a fish that sneaks up on you, and a 150-gallon tank should really be considered the bare minimum. Despite its predatory nature, it is a social animal and does better when kept with others of its own kind rather than in isolation. Tankmates need to be chosen with care. Anything small enough to eat will eventually become a meal. This is a rewarding species for an intermediate keeper who has the space and the patience to do it right, but it's not a fish you want to impulse-buy and figure out later.

Frequently asked questions

How big does the Large-scale Characin get?
The Large-scale Characin reaches about 17.5–19.5" as an adult.
What size tank does the Large-scale Characin need?
A minimum of 150 gallons is recommended for the Large-scale Characin, with more room needed for a proper group.
What water parameters does the Large-scale Characin need?
The Large-scale Characin does best with a temperature of 70–82°F, a pH of 6.5–8, hardness around 8–25 dGH.
Is the Large-scale Characin aggressive?
The Large-scale Characin is aggressive and is best kept alone or with robust tankmates that can hold their own.
What does the Large-scale Characin eat?
The Large-scale Characin is a carnivore. It needs a meaty, protein-rich diet of frozen or live foods.
How long does the Large-scale Characin live?
With good care, the Large-scale Characin typically lives 5-8 years.