Spawning occurs in weedy areas of quiet water. At this time, male killifish become quite aggressive, actively defending territories against other males. During spawning, females initially lay a single large egg that remains attached to their bodies by a thin thread. After some chasing by the males, females lay five to ten additional eggs which are then fertilized. The eggs then break free from the female and sink into the vegetation where they are left unguarded.
Hatching takes place in two weeks.
Other than occasional use as baitfish, killifish have little contact with anglers. Central Mudminnow Small, robust-bodied fish, central mudminnows only reach two to four inches in length. They are generally dark brown with mottled sides and have a prominent black bar at the base of the tail. Mudminnows live in a number of waters across the state, including the Great Lakes and the Champlain, Mohawk, and Upper Hudson River drainages. They are mostly found in heavily vegetated areas with a thick organic material layer.