Inhabits clear, swift, high gradient streams with bottom of boulders and gravel at elevations of 350 m and 500 m.
Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 9; Anal spines: 1; Anal soft rays: 9. Male with 6 spines in first dorsal fin, female with 5; pectoral rays almost always 15; dusky to blackish band extending midlaterally from behind pectoral base to below origin of second dorsal fin in male and ending as a small spot at hypural base in female; in life male with lower two thirds of body between second dorsal and anal fins, and caudal peduncle bright red.: fusiform / normal.
Behavioural data for Sicyopus Discordipinnis is currently being reviewed.
Diet information for Sicyopus Discordipinnis is currently being compiled.
Reproduction data for Sicyopus Discordipinnis is currently being compiled.
Freshwater; benthopelagic. Tropical
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