View WAC 220-12-090 Classification - Nonnative aquatic
animal species with photos
Pimephales promelas (Fathead minnow)
Animal Fish Family: Cyprinidae Classification: Prohibited
Fathead
Rosey red fathead
The fathead
minnow is a stubby, heavy-bodied fish, usually olive to gray above which
shades to straw color or white on the belly. However there is a red version,
sometimes called “rosy reds.” Adult fathead minnows generally
average 2-3 inches in length. It is a popular bait fish and its distribution
has undoubtedly increased due to releases by anglers. It is also a popular
feeder fish for aquarium fish and pond-raised game fish. The fathead's preferred
habitat consists of ponds and slower streams, although it will tolerate a
wide range of conditions. The diet of the fathead minnow includes algae,
bottom detritus, and zooplankton. Fathead minnows spawn from late May to
August when water temperatures are in the 65° to 80° F range. They
are very prolific and will spawn several times over the summer. The males
develop thick fatty pads behind the top of the head and large tubercles across
the snout during breeding season. Sometimes small tubercles also occur on
the top of the head. The minnow competes with native species for habitat
and food.
