new grower with a question

[CanGroIt]

and cangroit, 90cm sould be fine? isnt it too far?

they don't call them High Intensity Discharge lamps for fun.... 90cm would be too far for a full blown plant in flower but a seedling needs to reach for the light and grow some leaves to catch it before it can take the intensity. Start at 90cm. If they look like they are stretching, lower it to 80cm. As it grows, close the gap between the lamp and the plant tops, but wait until you have at least 4-5 internodes before getting it as close as 40-50cm. Once in flower, you can get it as close as 30-40cm, as long as temp permits....

CGI::::::