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Fish › Carp & minnows
Acrocheilus alutaceus
A native Idaho minnow of cool rivers and lake edges, known for grazing algae in gentle current.
Size range
7–12 in
Size range
Typical adult length in the waters we cover.
Water temperature
Warmwater
Water temperature
Preferred thermal regime for this species.
Origin
Native
Origin
Stocking and native history where this species is found.
Chiselmouth are native to Idaho and are a secure species overall, though they are not a common sport target. They are a small native fish in the minnow family, usually around 7 inches and up to about 12 inches.
Not yet linked to waters
This species has not been linked to a river or lake in our catalog yet.
IDFG-specific chiselmouth regulations were not found in the sources consulted. Check the current Idaho fishing seasons and rules for the water you plan to fish.
Regulations vary by water. Check current Idaho Fish and Game rules before fishing.
Status: Native to Idaho (S4)
G5 (Secure) · ESA: Not listed · Idaho: S4Browse species profiles with habitat, diet, tactics, and linked waters across the state.