Comes a Time, First Grow, Please Step Inside -- 2000 watt Sour Diesel

Yes, around 15 inches.
First 10 days they are still just transitioning from veg over to flower.
Adieu

I am going to flip them to 12.12 without question prior to leaving. The question at hand is weather to do it this weekend or wait until a few days prior to leaving? Is the first nine days alot easier to handle than days 11-20 is basicly what I am asking. Thanks Blue, you're support is appreciated.

Yes IMO, the first 9 are easier.. After the first 10 days they will start to stretch allot and it is nice to be able to adjust accordingly also, you want to be able to adjust the flower nutes as needed and you don't need to start them untill after the first 10.
Adieu and thanks for the thanks.

Cool, that gives me a little time to get my carbon filter set up and also figure out how the hell I'm going to set up the room so that I can get to the mother/clones and no light will get into the flowering room. Is dark plastic the best to use, I figured some type that can unzip? I am scared shitness of hermies so I'm going to be rather liberal with the set up....

Having a little problem here, some orange spots showing up on a few of the plants new leaf growth. My camera won't capture the problem well, I will try to borrow a friends shortly. Also curling upwards of some leaves, again the problem is only on like 2-3 plants out of the 34, should I not worry much? I matched it up with plant problem diagnosis and it looks like a calcium problem. Anyone had similar problems? The orange spots are very few, so I am not freaking out just yet, but I don't want anything to get out of control. I fed them their nutes at 550 PPM yesterday (slowly worked them up) Any advice is appreciated.

Wanted to update, the orange spots are *not* on the outsides of the leaves, they are on the inside towards the middle... not exactly sure what it is. Anyone care to comment?

What kind of water are you using?? Tap, RO?? You may need to get some Cal Mag because you may be seeing a deficiency of some kind. What is the PH of water before watering??
Panda plastic with tarp zippers will work for light proofing a different section in the room.
Adieu

ph of water is just around 6.0 when i give the water to them. have looked over alot of information on the net, def. seems like a calcium diff. -- open to suggestions from the group but for now my plan is to give them dolomite lime tomorrow.... i know its slow acting but i hope they rebound.. like i said, the problem is not completely over-whelming at all, so i am not freaking out but the problem will be addressed very shortly...thanks for the info

p.s have been using distilled bottled water for now, actually just switched to the tap water, but i havent even fed them that just yet...

Went to the hydro store, guy said the symptoms are def. a calcium diff. so I bought some Plant Amp to spray on them. He said they should be fine by tomorrow. So, I obviously raised the lights before giving them a solid spraying, have the lamp about five feet over-head now so they won't get burnt leaves. How long should I leave the lamp like this for? I suppose until the beads of water dry out? Thanks in advance.