Pickerel & Eel
Chain Pickerel
This fish is prone to over-populate whatever waters it is in, with the result that few get very big, instead, there are large numbers of small ones. They actually do pretty well in an aquarium, as long as you provide them with a steady supply of live minnows. They are not aggressive towards anything they cannot swallow.
-- Wikipedia
American Eel
Eels are typically only seen at night. Pencil-sized young are common. Yearlings that have just come in from the sea are 3-4 inches. After many years in freshwater, these eels go back out to sea to spawn, and then die. Eels are extremely slimy, you don't want to handle one.
-- Wikipedia
