The head is of moderate proportion with a medium-size lateral eye and terminal mouth. Spawning occurs in beds of clean, current-swept macrophytes.
Development is essentially unknown.
Population levels have certainly declined from levels prior to introduction of the brown darter in the lower Rocky Bayou system, and most likely from habitat degrading activities on Eglin Air Force Base. Okaloosa darters inhabit cool to warm, small to moderate size streams, 1.5 to 2O meters wide, in depths ranging 4 centimeters to 1.5 meters. Most streams are low gradient but with persistent discharge, and drain sandhill terrain of managed mixed deciduous or coniferous forests. These streams are sand-floored, slightly acidic, although usually not dark stained, and open sunlit sections harbor a fairly diverse assemblage of submergent and emergent macrophytes. The Okaloosa darter is typically associated with cover, typically fine-stemmed macrophytes and detritus, in or adjacent to moderate runs of less than 1 meter a second.