I have just invested in a grow tent with a floor area of around 3.5sq yds. I already have 2 x 250W CFL red spectrum lights. Is this enough for that area? I have read that plants also need some blue light when flowering, so could I use 1 x 200W CFL blue (which I already have) to boost the light levels, or would that be too much blue? I am confused about these lights. When they say 250W, do they mean their light output is equivalent to 250W, or do they use that much power? After buying the tent I am broke, so I'm hoping I don't need to buy more lights.

Also I need a carbon scrubber, and have been looking at previous DIY threads. I'm not technically minded but think I can manage to build one, once I have translated all your American names for the materials (what you call dish cloth we call weld mesh, a dish cloth is what we wash up with!)lol. But what size fan would you recommend? Am I right in thinking I can use a bathroom extractor fan, and that it should be positioned near the top of the tent? And will this extraction provide enough air flow round the plants? If not, would a cheap 7" clip on fan do the job? Does anyone know of any DIY instuctions using UK materials?

Sorry for so many questions, but this is my first grow and I want to get it right. I need to get this set up asap, as my poor plants have outgrown thier alloted space.
mygarden Reviewed by mygarden on . Advice on CFL lights and ventillation please I have just invested in a grow tent with a floor area of around 3.5sq yds. I already have 2 x 250W CFL red spectrum lights. Is this enough for that area? I have read that plants also need some blue light when flowering, so could I use 1 x 200W CFL blue (which I already have) to boost the light levels, or would that be too much blue? I am confused about these lights. When they say 250W, do they mean their light output is equivalent to 250W, or do they use that much power? After buying the tent I Rating: 5