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not recommended. you'd wanna get a another HPS for that :)

unity what additives would you say are most important?

here's an idea - grow 12/12 from seed. lots of people do it. it means your plant will flower at 15-30cm tall and reach no more than 2 feet or maybe a little more depending on strain. but you get it much more easy, AND the big bonus - you can change your veg room into a second GROW room, that is...

then again, if you only got 2 weeks till harvest, there's a chance you might still get a very good buzz out of her even if you chop now. try one.

root bound? i've had that and i think maybe because of that. but not sure. what's their natural state? clawed down?

hard water buffers pH up. Some (most? all?) hydroponic nutrients buffer it down. but then you say you KEEP it at 5.6-5.8. if that's the case you should have a prob w/ that. but if you're having a hard time keeping it, and it rises to more than 6 i guess, then perhaps you might consider searching...

http://shop.ebay.com/i.html?_from=R40&_trksid=p5197.m570.l1313&_nkw=desiccant&_sacat=See-All-Categories#http://cgi.ebay.com/O1V-2-Silica-gel-Desiccant-Moisture-absorb-box-reusable-/290567097776?pt=LH_DefaultDomain_0&hash=item43a7260db0&vil=1 something like this never tried it but i'm interested...

Perhaps it has to do with your medium? I have found that in coco for example my plants didn't even start growing without a feeding, but I was said that this is because the chemical properties of coco - with too low of EC it would suck the nutes out of the plant. But perhaps with water this...

i'm glad this is growing to be a good debate, and hope all sides remain cool. it's an honor having Uncle Ben here as he is well reputed in this site. but this does not settle this controversy, what we need is an actual side by side grow with and without additives and boosters, where control...

i don't know much about DWC. But I would say, if they seem to be doing better at 0ppm, leave it there for a few days, see that they are growing at a normal rate (nothing like what you have had so far), then start to up it VERY slowly. I will tell you when they are hungry, I can tell :P i am...

no need to get an expensive dehum- get a desiccant instead.

really hard to tell! looks like a deficiency of some sort, normally i'd say lockout of some sort but in your case that's pretty hard to believe. what do the roots look like? when did you last flush? bottom/upper leaves? what about general looks of the plant? try to post a better picture both of...

it's a matter of penetration - no matter how many watts you have, artificial light loses intensity exponentially with distance. So there's really no point in growing tall when you can grow wide. the ultimate method for max light usage is the scrog of course, whether you actually use it to make...

that's cool man but what would happen if you didn't use them is what i'm wondering would you get a bad crop because of that? poor yield? low quality? no high?

lol that's one monster ass grow man! but then... you spend so much money on it, won't you scrape a couple more bucks to get additives and boosters that are supposed to increase your yield 30%? or do you just not believe in that? also, how do you not get caught with so much electricity running...

I think your move was redundant and could only hurt your plants at this stage of flowering. Like you were told in the thread you linked to here, your plant didn't really have a problem, and we can also see that in the pics here - your plant was not root bound - it reached a very good holding...

My friend was asking me, and I was wondering myself: Is it possible to run a decent grow producing excellent quality yield with reasonable yield (min. 0.5g per watt) with only basic nutrients (NPK + secondary + micro)? I know that additives and boosters (root accels, enzymes, pk/bud...

thanks! well it's not so simple. The plants are in a box inside a room. I tried my best to seal the box but it's not a 100% light proof. So I have to close the shutters of the room's window at night completely to keep it dark. Thus the RH spike in darkness hours. I don't live in the US and I...

well sativas take much longer to flower. but you should know that high plants are not good for anything with 400w HPS. It's much better to keep them low and use your light better like this.

you overfed it. you seedlings can't handle more than 0.25 EC. this is why.