I am not sure about the "purp" stuff, but isn't some purple from cold temps?

One thing I do know that you should be keeping your lights a lot closer and maybe trying to put some of those cfls on the sides of her too... You are getting a lot of stretch and if that is a sativa you are going to pay for letting her do that, especially in the end... The new foilage looks great though man and I am sure that it will only get better!

TehNoobletimp: