Depending on the size of your bass, adding trout particularly ones small enough to be preyed on by the bass can help fatten your bass up. Those trout that are just a bit too big to be eaten or slip through can grow through the colder months and as already mentioned make for some fun winter and spring fishing until they die with warmer water temps... It may be hard to source trout in Alabama though. If I recall correctly there is only one BOW that holds them year round in Alabama and not too many areas stocked with them but you may be able to source some. Greg Grimes on here is out of GA and may be making a swing through your area and might be able to deliver you some trout if you cannot find a closer source.

How long have the fish been in there? What size range are they in?