Which two major South American river basins firmly root the natural distribution of the X-Ray Tetra?
Answer
Orinoco and La Plata river basins
The native home of the X-Ray Tetra is geographically restricted to specific northern regions of South America, specifically identified by its presence within the Orinoco and La Plata river basins. These two systems serve as the primary geographical anchors defining where the species originates in the wild. While the Amazon system is sometimes mentioned in broader descriptions, the Orinoco and La Plata are cited as the established grouping for their core distribution. Understanding these specific river systems is crucial as the water chemistry and flow dynamics associated with these regions dictate the fish's evolutionary adaptations.

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