Boilie a boilie is a hair rig (the bait is not attached directly to the hook) which allows the boilie to sit off the back of the hook. This not only means that the bait will behave more naturally in the water (for example when disturbed by feeding fish) it also will often make the difference between a good hook hold and a bad one. Due to the nature in which a carp feeds the bait is blown out of the mouth soon after it has been picked up and the fact that the bait can move independently from the hook
Fishing bait worms can grow up to 7 inches (18 cm) in length, but usually are between 3 and 4 inches (7–10 cm) long. Worm farmers also offer other worm species for bait, depending on availability, which usually depends on the prevalent climatic conditions. The capture, transportation and culture of bait fish can spread damaging organisms between ecosystems, endangering them. In 2007, several American states enacted regulations designed to slow the spread of fish diseases, including viral hemorrhagic septicemia, by bait fish. Because of the risk of transmitting "Myxobolus cerebralis" (whirling disease), trout and salmon should not be used as bait. Anglers