Hemimyzon pengi – Pengi Hillstream Loach (~3″ / 5.9 cm) Wuyi Goby algae‑grazing body

algae‑grazing body

pH: Neutral to slightly alkaline (≈7

and its adaptability—including landlocked populations

flowing dorsal and anal fins that enhance its swimming elegance

Males may exhibit territorial behavior when spawning

Hemimyzon pengi – Pengi Hillstream Loach (~3″ / 5.9 cm) Wuyi Goby algae‑grazing bodyDescription Hemimyzon pengi, commonly known as the Pengi Hillstream Loach, is a compact species reaching about 5. 9 cm SL. Native to fast flowing streams in Yunnan and Laos, this loach features a flattened body and specialized pelvic fins adapted for clinging to rocks in strong current. The body exhibits subtle mottling, often with a hint of dorsal patterning in mature individuals. These loaches graze biofilm and algae on rock surfaces and display