Seaweed in freshwater..?
I'm gonna guess that if there is any type of structure in the deeper water, it can be anything, even a creek channel, rocks, ect. If you have a fishfinder try metering any areas like this to see if they are holding fish. Also if there are any springs in deeper water that would be my first place to fish, you can get maps that will point these out. If none of that applies, then I would 2 things, toss a crank bait that has a pattern of the baitfish in your lake, i.e. perch, bluegill, ect. I would get a lipless crank, and retrieve it at different depths, starting low, and work up, if you start catching fish, note the approx. depth, as bass will usually suspend in schools.
Second, I would tie on a 6" roboworm to a carolina rig, and drag it slowly along the bottom where you think there may be fish. Both of these presentations will allow you to cover water faily quick.
If you find fish are shallow and holding tight to cover, I would be flipping a craw, creature, or jig bait in the thickest of cover, note: you need heavy line, preferably braid in 55 to 65# test, or mono in 25 to 30 lb test. If the water has major tidal movement, then I would fish the incoming tide in the weeds, ect.
Your going to have to experiment a bit, my suggestions are only that, just suggestions, w/o being on the water.
Also, I would try a white/chartreuse willow bladed spinner bait, use gold if the water is on the clear side, sliver blades if it's stained. If the water is clear, you want to rip the bait, if it's stained, slowroll it.
As for scents, imho, it never hurts to use, although many fish have been caught w/o it.
There are other options, but way to many to type out. If possible, talk to local bass fishermen that catch fish in your lake, ask for pointers, as most won't tell you exactly how they catch bass consistently, putting in time on the water, i.e. learning where structure is will only help you to do better over time. I hope this helps you some. BTW, if you are in a boat, or tube with electronics, turn them off while fishing.