Adults inhabit a quiet pool of clear to murky water at a depth of up to 1.2 m and with bottom consisting of sand, silt, rocks and boulders . Migratory behaviour is undetermined .
Physical description for Finescale splitfin is currently being compiled.
Behavioural data for Finescale splitfin is currently being reviewed.
Diet information for Finescale splitfin is currently being compiled.
Viviparous. Males possess an andropodium, a structureless lobule of the anal fin which acts only as conveyor to assure successful fertilization.
Freshwater; demersal; pH range: 7.0 - 7.7; dH range: 5 - 20; depth range ? - 1 m . Tropical; 21°C - 25°C Central America: Rio Ameca basin, Jalisco, Mexico.
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