Productive areas include deep pools located downstream of riffles and runs, where fish hold to conserve energy and ambush food. Areas with significant submerged woody debris, such as fallen trees and root wads, are always worth targeting, especially for larger pacu and plecos. Undercut banks along outside bends provide cover for tilapia. Confluences where smaller tributaries enter the main stream often create nutrient-rich seams and deeper holes that attract multiple species.