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They are looking healthy. Good work. :weed:

Oh, I've got a carbon filter now. The point I failed to make is that it can come on fast. I wasn't expecting it until flowering. It's a big expense, too. I think I've got about $450 into ventilation/filtration.

Your plants look good, but small. Don't take this the wrong way, but I'm going to be blunt. If this is your first grow, I wouldn't cut anything until you are into flowering (other than topping the plant, which you should do now if you are going to do it). Only then trim a few fan leaves at the...

You need topsoil. Most soil in forests don't have much, because there's not much sunlight. Dig straight down into any outdoor soil. Look close at the side of the hole. You'll see a color change where the topsoil meets the other soil. It can be anywhere from 1/2' down, to 10"+. It's typical...

Unless you've got fem seeds, you'll need more than double what you plan to keep. If you want two plants, I'd sprout at least 6 seeds. Keep the best females. Start thinking about controlling smell now. My plants started smelling beautiful at 3 weeks, not just the grow room, either. The whole...

Week 6, Nov 12

Florigen is generated in darkness, and once it reaches a level high enough the plant will flower. I suspect you could run your light one hour on, one hour off 24/7 and the plant will flower. I'm not buying it that this will increase your maturation rate. THC takes time to accumulate, and...

PH is 6.4 on runoff. Discoloration has stopped, but I'm seeing a bit of leaf twist on the tips of new growth. They seem to straiten out once they mature. I've been giving it a full dose of Cal-Mag with each watering. Gave them a half dose of maxi-bloom today for the first time. I'll probably...

SCROG w/ LST is what I use, along with one topping at about week 1 or 2. Bending the top of the plant not only controls height, but exposes side growth. The highest portion of the plant receives hormones that accelerate growth. You can control what part of the plant grows by controlling the...

A couple things could be going on here. 1. A leak between the fan and the filter will draw unfiltered air into the fan. 2. A fan that is too small will not be able to maintain negative pressure in the room. 3. Your filter may be worn out. 4. You may be drawing air through your filter too...

Oh, I'm not dismissing your experience. It's got me, and probably a lot of other people thinking about this. But surely you are getting better with each grow. And you probably grow various strains. There are other variables in play, and we are talking about subtle things here. The thing I have...

No one is suggesting you are. We all make decisions based on limited info. I think the anti-science sentiments so many people express are cute. They act as if its something to despise, as if their lives would be better without it. They act like a spoiled brats, thinking if he breaks his toy...

50% less does sound suspect, but devaluing research because it is old is ridiculous. If it was just one study, than it is anything but confirmed. Its a data point to consider. At the same time, anecdotal evidence is not useless, but is suspect as well (among other things largely due to...

Dead flat white can be as high as 90% reflective, gloss as low as 50%. Matte would be somewhere between. Mylar is 97% as a point of reference (but has poor diffusion). I have doubts about a manufacturer's claim of 95% for the roof coating. Flat paints are hard to clean, and mark easily. You...

If you were a thief looking for a place to rob, would you go to the house with the big dog, or the house right next door with no dog?

I'm moving this grow journal from the blog section to the discussion section, so I can keep posts in chronological order. Comments are welcome. I haven't grown anything under lamps since the 90s, and my last outdoor grow was about 15 years ago. I had a 1kw MH in the early 90s, and had several...

It's soil. Seems to be gone, now. I've been watering with rain water, which initially measured about 5-6 ph. To raise the PH I've been adding silicon solution. After a few weeks, I got a cheap PH meter, and was surprised to see the PH was up to 7.2. So I'm thinkiing - have I been raising it...

Seems I started the journal as a blog entry, instead of in the forums. When I replay to my blog entry, it shows as a comment, and not a forum reply. I'm missing something here. Is there a FAQ on grow journals anywhere? Just tried 'Create Entry', and it posted, but it posted to the top of the...

I see the upload button when I reply to other threads, but not my own. I'll screw around with it a little bit. I'm probably overlooking something.

Plants are 5 weeks old. Problem started showing on new growth. They're in soil, and I've only been feeding them with silicon supplement. Saw the first signs on Monday. Gave them a dose of cal-mag on Monday & Wednesday, but problems seem to be getting worse. Any help would be appreciated.