If you want to fish for sport use lures. But if you just want to catch this bass and dont care how i have three suggestions.
1. Live crawfish. use a #6 hook(i know its tiny) through the tail of the crawfish then put a small weight about a foot above the hook and cast out and slowly reel it in. 4 out of the 5 biggest bass ever caught were caught this way.
2. The biggest night crawler you can get texas rig it like you would a senko. DO NOT MAKE A WORM BALL! hook in on a bobber and then SLOWLY reel it in to give it a little extra action
3. Find out what the local baitfish is in your lake (Shiners, shad, chub, ect.) then buy big ones from your bait shop and hook through the lower jaw and up through the top of the head between the eyes. either fish them on a bobber or cast them out and reel them in.
DO NOT USE BLUEGILL IT IS ILLEGAL AND IF IT IS A STATE RECORD IT WILL NOT COUNT AND YOU WILL BE FINED!
Trust me on this, i have been fishing my whole life since i was about 2 years old.