4 lb test is fine. If you’re not using a spinner or spoon but a very light leadhead marabou jig , trim the feathers so they aren’t too long or else timid fish will just grab the part aft of the hook. Cast, then let it sink a bit. Then pull the rod up slow, then reel as it comes back down, repeating in short bursts so the feathers get a chance to flare out periodically. You want it to look like a nervous minnow coming up to snatch a bite and retreat to the bottom.
If there’s weed on the bottom you can add a tiny bobber.
Works on trout too... sage green looks like an aquatic bug.
Thanks for your advice. My wife called the place a while ago and the guy told her it flooded but the cabins didn’t get any water. I said “Good. That means there shouldn’t be any snakes hiding under the beds.” Now I just need to find me some stove pipes to wear over my legs.