What critical physical characteristic of the Xingu River environment must be rigorously replicated to ensure the Zebra Pleco's respiratory health in captivity?
Answer
High/Vigorous water flow
The native environment of the *Hypancistrus zebra* is characterized by constant, vigorous water movement, necessitating strong currents in an artificial setup. Replicating this high flow rate is essential because the resulting turbulence directly leads to high oxygen saturation, which these fish absolutely require for healthy respiration. Insufficient water movement is a common pitfall that can lead to stress and subsequent illness in these sensitive catfish.
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