dogdoc
I agree about deciding on living with the crappie. If the goal is producing large bass, the crappie will make life hard. Liming, fertilizing, and feeding can help put more pounds of fish in the water, but it may not help with growing bigger fish if the populations are out of whack. A fish population study is the best tool for deciding where your pond is at now. Most ponds in AL I see with both predators need some more forage, but some are beyond saving without spending much more time and money than starting over would cost.
-HH