Habitat Type: Freshwater
Comments: In freshwater areas, this fish typically inhabits quiet weedy pools and backwaters, or occurs among emergent plants at stream edges, over bottoms of sand and mud. Marine populations apparently are pelagic, usually staying close to shore. In some lakes, two morphologically and ecologically distinct forms may occur, differing in habitat (one littoral, the other mainly limnetic). Eggs are deposited in freshwater in a nest of plant material made by the male on the bottom in shallow water.