i'm kind of in the same predicament, i'm using large tub and a flourecent light about 100W and my parents know so its all good, but this grow is purely for research and i hope to see how far i can get by growing them under such shitty lights and in winter i mean has anyone in england seen how fucking shit our weather is its shit, so i hope the results i get can help me on my real grow in the summer which is using the same flourecent lights during night time and using good ol british summer sunlight during day, also i'm not blazing until end of GCSEs which is about june so this experiment should keep me going, its been 3 weeks since germination and its only just started to grow the 3rd set of leaves. which is pretty slow, but hopefully i should get sum alright results, lil josh, go to argos and get this

http://www.argos.co.uk/static/Produc...er/4308148.htm

and theres a hydro shop in fulham that sells mylar

http://www.growell.co.uk/p/0309/Myla..._Sheeting.html

use these and i think you should be alright, this is a REALLY BUDGET approach but hopefully it should speed up growth better than relying on our shitty sun

-peace