The summer-night fish of the Basin. Liver, cut mackerel, and patience. Some park lakes have a tighter bag than the statewide no limit.
Deeper, slower water in reservoirs and the warm urban lakes CDFW and counties plant with cats.
T14 CCR §5.15: bullheads no limit; other catfish no limit except listed waters. Los Angeles County exceptions with a five-catfish bag: Alondra, Belvedere, Cerritos Regional Park, Earvin Magic Johnson, John Anson Ford, Kenneth Hahn, and La Mirada. Castaic, Puddingstone, and Santa Fe Dam are not on that five-fish list unless posted.
Read the park sign. The five-fish list is specific; do not assume every urban lake is on it.
California inland species regs — catfish §5.15 →
Independent-site disclaimer: this summary is for orientation only and can change in-season. Confirm with CDFW before you keep a fish. Fish in LA is not affiliated with the California Department of Fish and Wildlife.