Thanks, I hope it is something as simple as rust fugus - I found a site saying that it can be treated with:

baking soda, 1 tea spoon/ quart of water. spray on.

I have one or two other questions.

Firstly, my plant showed the little (pre flower?) hairs at about 8 days old - and now I have them at every node (3 nodes so far). I know this is NOT a sign of flowering, or maturity (since alternating nodes are what show maturity), but is that not really early for the little "hairs" to form?

Also, I had a bit of an accident and today the lights did not come on in time. The plant ended up getting 14 Hours light and 10 Hours dark - just for today. I am guessing this is ok and might just cause a little stress...anyone think different?

Thanks!