Bob and Paul, thanks for the helpful information. Since I already have some growing in a somewhat rich soil mix, I will continue with that. I will compost some of the soil for use as suggested. And will get my hands on some sand to try that approach. For now I just have a small set up. Oh, and also have a couple of plants in rockwool cubes with the water up to the top of the cube. The cube plants are not doing as well as the soil plants.
Thanks again for all the help,