Age: Approximately 2 weeks old.
It has grown almost 1 foot tall. Reminds me of Jack and the Bean Stalk story...it's already climbing the fence! I can imagine what it will look like in 1 month's time!

Do not over fertilised or love them to death!
I noticed I did that...the leaves changed colour over-night...
http://www.rollitup.org/general-marijuana-growing/24223-problem-solving-discolored-leaves-etc.html