What it is
Crucian fishing is lift-method and pole fishing at their quietest. A light insert or a small pole float, maggot, caster, a tiny expander, a single grain of corn, on the silt of an estate lake or a farm pond. The bite can be a millimetre.
True crucians are not the fat brown goldfish on some commercials — those still count as a fish, but the approach for wild-type crucians is quieter. Sit still. A small baited spot. No rocket feeders.
Do not put the lake on the internet. They have few enough homes.