Hi, the spotting was there before i repotted but nowhere near as bad as now and only on one plant, I germinated the seeds in peat pellets in a heated dome, but i mistakenly added nutes from the very start and them i didn't repot them soon enough, they were rootbound when i moved them to the larger pots, they are 2 and a half weeks old now. My water ph is 6.5 and my lights are a T5 compacts. I think they may still be suffering from the nutes i gave them too early, i'm just using water at the moment, not sure when to start giving them nutes again. Thanks for the quick responses to my questions.