You need to be more specific as to what species??
Lure
rod ,hook, (boat if not on the river),net,bucket,bait and a good spot for fishing
leaches
yes, you do put bait on a fishing hook.
If you mean bait for fishing, there is none. You just use the fishing rod.
No your wrong, the best bait for a red snapper is a pilchard.
Fishing bait
Yes, in the northeast (USA) they are known by the name "killies" and are the best bait for fluke fishing.
whenever i go fishing i like to use tiny bits of hot dogs.
the best bait for coarse fishing would be maggots ,red ones are preferred for some reason the fish seem to go for them more often and in the colder times like November or October use pellets and boilies with ground-bait to attract the fish better.
blood worms during the day and sardines at night
Pet ones, Ground fishing bait as a chick, fishing bait as adult.