Goldfish
Carassius auratus · Cyprinidae
About this fish
- Spawning
- March, April and May
- Largest length
- up to 59 cm (23 inches)
- Lifespan
- up to 10 years
- Matures at
- about 3.5 years old
Values come from a national database of the United States, not Wisconsin surveys: maximum length is the species' largest recorded anywhere, and spawning months are range-wide (Wisconsin timing, in a colder climate, can be later).
USGS FishTraits 14.3 (CC0). Credit: Frimpong and Angermeier, U.S. Geological Survey.
19 open records of this fish in Wisconsin were used here.
Lakes where it has been recorded
From open fish survey and museum records. A record shows the fish was found near the lake in that year, not that it is there now.
Showing 6 of 6 lakes
- Lake MendotaDane County9,842 acres · 82 ft deeprecorded 2025 (1 record)Lowstocked, recorded
- McCarty Park PondMilwaukee County4.0 acres · 9 ft deeprecorded 2023 (1 record)stocked, recorded
- Washington Park PondMilwaukee County11 acres · 5 ft deeprecorded 2021 (6 records)stocked, recorded
- Greenfield Park PondMilwaukee County7.0 acres · 6 ft deeprecorded 2020 (1 record)stocked, recorded
- South Fish LakePolk County75 acresrecorded 2005 (1 record)Lowrecorded
- Peters LakeWalworth County64 acres · 8 ft deeprecorded 1974 (1 record)Moderaterecorded