Go Catch some sand fleas and they say that is the best bait you can use and its free.
I actually seen people catching sand fleas at night and using them for fishing the next day. here is a video of what I'm referring too. https://www.youtube.com/watch?v=I7ad4_NXjpM

Born and raised in central louisiana grew up on Iatt Lake in the black creek area near abes boat landing. with thorough knowledge of Iatt lake where I explored the lake as a kid in the Sheriff of Grant Parish Boat which was located next door to our camp house. My dad caught me one time and said boy do you know who's boat your in. I wasn't real sure at that time. My dad replied you done went and stole the Sheriff's boat. Pop Hattaway. I learned my lesson without being arrested or going to jail. Thank God for that.