Hi Sheist thanks for the advice re germination. I'll get some reflective material to line the wall (just using tin foil and some BBQ trays at the moment!).

I'm using a single "Envirolite" 125w 6400K suitable (according to my friendly local hydroponics shop) for the vegetative stage. Apparently I could hook up another one for the flowering stage (different colour spectrum?).

Am wondering whether I should get another light in the cupboard as from what I have read its "the more light the better"?

Forgot to mention that the oldest plant (just repotted in 10L pot) is 16 days old from germination. Its about 4.5 inches tall. Am leaving the light on 24/7 at the moment.

Andy