Carps grow fast and bass won't help. Sure, they can eat young ones but after a year they won't be a meal for bass.
At first you should create some feeding spots for carps. Feed them with plant based food - boiled potatoes, grains and similar stuff (avoid food that may be suitable for bass). After some days carps will start visiting these feeding spots very often. Then you can use fishing traps (try to find a special thread about that) or system with lots of hooks and the same bait as was used before.
