This happened to me, and I was told it was because the plants are using the nutrients more efficiently than they would in nature, so its not a bad thing. Mine were more corkscrewed than yours rather than the ends turned down, but they don't look bad. If they start changing colors or looking burnt, there's quite a few things it could be. But if they stay green, I wouldn't worry too much about it.
Last edited by dejayou30; Nov-11-2007 at 17:29.
The above post is fictional and should in no way be taken as truth.
If I were to grow cannabis, I would only do so to supply myself and my close friends. Doing this would take myself and my friends out of harms way by knowing the source of our cannabis, as well as take hundreds of thousands of dollars off the black market annually. It would also lower the demand of black market cannabis, and would ultimately help keep cannabis out of the hands of minors.