Nope. There's nothing to worry about. If you started from seed, you are going to have a variety of phenotypes, that express the range that your strain is genetically capable of producing. After they have gotten some decent growth, you can start training them in a number of ways, outlined in another forum on this site.
Experiment, and have fun! Cannibus is a hardy weed and will grow under many different conditions.
Thank you for your opinon,I just wasn't sure about it. I know about training plants but have never done it before.Would you tell me on what fourm it is.Thanks again