Cannabis Grow Rooms

I've been using 24/7 on my seedlings in a nutritec cloning chamber until they were 3" and then moving them to a 400w HPS multi spectrum light, also 24/7 - I have a max grow height of about 4feet and I am wondering if using 24/7 will give me too much height before flowering, or doesn't it make much difference? any advice would be appreciated

Was getting my 600 hps lights out of storage this arvo and it occured to me i should probably get new bulbs cause i cant even remember how much work they've done. How long are they good for and how can ya tell when you need new ones? or doesn't it really matter ? :scratchin

"Many growers are reporting improved flowering vigour through reducing their light times gradually when it is time to go to Bloom, especially those who are growing with The Program. Instead of dropping straight to 12 hours from their vegetative stage of 18-20 hours, they are reducing the light time by 2 hours a day, gently taking the plants into flowering. This is closer to what happens naturally outdoors and so far all reports have been positive. " anyone heard of or tried this?

I'm looking at buying a couple of lights to get ready for my indoor grow. I'm debating weather to get 3x 400HPS or 2x 600HPS both types will be with adjustashades. Also I can't decide weather to go for the medium sized adjustashade 60x55cm or the large adjustashade 98x70cm The room will most likely be 1.25m deep x 3-4m wide x 2m high and I'll be growing 3 to 4 large plants. First grow will most likely be a soil grow, and I might try DWC on the 2nd or 3rd (if I can be bothered ) Please post your opinions :thumbsup PS Don't really want to use 1000HPS

Heya all i was wondering if anyone had done any research on the best temperatures for plants to be in at different stages of there growth cycle. I am also curious as to the different climatic inclinations of different breeds do the incs like it hotter than the sats or vise versa and do cross breeds react strangely to these temperatures. I know im pushing it here but would anyone have any ideas about the ideal humidity or if it would even matter. Im guessing that the plants all around would prefere moving air rather than static air but what sort of flow rates are we talking here (i dunno how this would be measured) just to throw some food for thought a nursery frie…

I have 5 seedlings under a 400w (about a meter under) temp is 24-25c, small room, small window opened 1-2'' wide, small ocillating fan, room door closed. Two plants although seeded at the same time are over twice the size of other 3 -- all were revived after many leaves turning yellow due to 10 times too much nute. I pruned dead leaves, flushed 3 times, adjusted to correct nute strength and plants revived in a few days and began growing healthy leaves. One problem -- they start to droop about 2-3 hrs before the light is due to turn of f -- even though they have enough water and temp is not higher than 26c tops. Do I need more ventilation or is 18hrs too much for them. T…

Just wanted to know if my only option for ventilating an area would be a centrifugal fan and carbon filter.. I was looking at these: 150mm fan - 15m3 per minute - $225 150mm x 400mm carbon filter - $210 Can I use an inline 200cm fan for like $150+ which pushes the same air but quieter.. and my own home made carbon filter with much success? Ill be using one 600w HPS so far... after this crop ill buy new equipment, so it just needs to be able to get a crop flowered.

Is it just me or are these things friggen huge! http://i30.photobucket.com/albums/c339/Cultivator/Envirolite.jpg I wonder how much advantage over my 4ft battern double flouro this would have, and how would I go about hooking a couple of these puppies up? That screw fitting looks alot larger than standard :scratchin Are the growbrite ones from Hyrdo-Aqua-Pet this big?? It comes in a 6400k for propagation/veg and 2700k for flower Found them here http://cgi.ebay.com.au/ws/eBayISAPI.dll?Vi...AMEWA%3AIT&rd=1

hey im trying to veg my plants to as big as i can in the next 30 odd days under my 400w, i just had an idea can i put the 130w CF 14,000k light in there too ? for the factor of more light ? thanks

hi all, been quiet for a while. just put a new room together and finishing it off. was wondering what ppl think of a twin 600 in a 1200x1000 area with 1800 head height??? i got 2 150mm fans coming in with a duct running all round the bottom wall putting air everywhere and a 250mm exhaust, thinking of another in the roof. just dunno about the twin 6`s though.....givus your thoughts folks... JAIKAI