Spawns in spring and early summer (typically April-June) when big floods spread over the banks: groups of 5-20 adults move onto shallow, grassy flooded areas and scatter eggs over the vegetation. Not a home-aquarium project.
Large adults.
Huge ponds.
Spring flooding.
Eggs hatch in about 48-72 hours. The eggs are highly toxic to many animals, including people, and should not be eaten or handled carelessly.
Fry eat live food then fish.
No visible external differences are described; very large fish (over about 6 ft / 1.8 m) are mostly females, as males rarely grow that big.