New Grower Newbie Questions

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Hi Guys,

I'm about to start my first ever grow and this site has been fantastic for my research/info. I'd be lost without it so i had to join and make a new thread. I have a 80x80x100 room and gonna have 2 plants in there. I'm using a 125w cfl lamp and have a 6500k for veg then a 2700k for flower. Gonna go and get a light airy soil, nutrients and root stimulator's tomorrow from my local hydro shop (any recommendations for the UK welcome as there are so many to choose from???)

I have a couple of questions-

The main question I have is I have read that I start the lights at about 60 cm/24 inches high then drop to 30 cm/12 inches at 3 weeks ish.

Is this the case for cfl's as well and at what point do I drop it again as I was led to believe that I can have it as close as 2/3 inches away??? so at what point do I drop again or am I wrong?

Also when do I know when it is in flower and therefore when do I change nutrients and the lamp from blue to red?

Many many thanks in advance for any responses

melki
 
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Nice to meet you melki :smokebuds: Have a look in the lighting section for CFL info my friend and welcome to AFN
 
Welcome melki:smokebuds:lot of cool folks in the lighting section that will give you all the advice you need. In regards to your question about when to switch over the flower nutes. Once your plant stops vertical growth, it will go into flower. Then you will be able to stop veg nutes and begin flower nutes:gthumb:Hope this helps you out a bit. Also slide on by the Intro Section drop a line, and let us give you a AFN :vibe:welcome
 
Hey bud and welcome to the AFN. I see you've already gotten some great advice. Definitely check out the CFL lighting section HERE

With cfls you can start about 12 inches away from the start and when they get 2-3 sets of true leaves, you can drop it on down to within a few inches or closer as long as you have good airflow and your temps are in check. 80 degrees F is golden for Cannabis growth. I didn't see any mention of ventilation in your setup. I suggest an inline fan of 4-6 inches in that size space for exhaust, and with a carbon filter to get rid of the smell when they begin to flower, it's all about stealth for most folks.
 
hey, yeah the advice is fab. Forgot to mention the ventilation but i do have a 4 inch inline fan at the top with a carbon filter attached and a 8 x 8 inch square passive hole in the bottom corner for intake with a small clip desk fan just to circulate the air a bit inside.

Just wandered about how high to start the lights at so thanks for that.
 
Welcom to Afn....
 
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