The severum, Heros severus (previously known
as Cichlasoma severum), is a freshwater tropical cichlid native
to the Amazon region in South America. It is rarely found in the aquarium trade.
The fish commonly found in the Aquarium trade is not the Heros severus,
but the more common Heros efasciatus, Hybrids between the two are possible
but unlikely because of different breeding behaviors, with Heros Severus being
a Mouth Brooding Cichlid.
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