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Stop drenching the leaves. I don't know why people do that. You thought you topped it wrong so you perched a clot of dirt on the plant? WTH It's too late to do anything about a poorly executed top. Leave the poor plant alone for God's sake and let it make new leaves, regardless of where...

What kind of Miracl-Gro?? MG must have spent their advertising dollars wisely, because lots of folks keep coming on here with their plants in MG. The Miracl-Gro Time Release stuff is terrible. Some of their products are OK. I don't think any of their mixes are considered top-notch by the...

Our RH rarely if ever dropped to 52%. Most of the time it was in the 60% range. You'll be fine.

50% amber?? You mean the trichomes? Why would anyone let 50% of their THC degrade?

Don't do it

I noticed several leaves on our plants with patterns similar to yours. I think when they're very young it doesn't take much to damage them.

If it was damage from the FIM or quasi-FIM the longest leaves at the center would show more damage, and the shorter leaves would show less. Based on my experience anyway. As I mentioned previously, 3 or 4 levels of leaves were damaged after FIM'ming ours because the top was so dense that...

Those CXB's are awesome. 100 lpw, which isn't bad at all. DIY is still more efficient. The biggest problem I see with the CXB is the CCT of 4000K. Most folks recommend about 5000K for veg, and a much "warmer" light for flower. 2700K or 3000K. 4000K sits right in the middle, throwing out a...

Does anyone else think that these plants are in ridiculously small pots?

OK, thanks. Is a CXA3070 5K still considered to be best for veg? I've been following the DIY threads as much as possible. I got the impression some folks think the 3K can be used for veg as well as flower?

I read back thru this thread. Unless I missed it, medicinehuman never mentioned the CXA's temps? 2700K? 3000K? Not 5000K, I wouldn't think, because he's flowering with it. But the diode looks kinda pale...

Looks like two tops to me in the Post #49 picture. The plants look great! It's going to be wall-to-wall green in a coupla weeks

Sulfur is mobile. That means if it was a sulfur deficiency the plant would be pulling it from the lower part of the plant and moving it to new growth. So the sicker leaves would be down low. What is it exactly that makes you think the plant is sick? The stems look reddish, there's a bit of...

I think you'll see some signs of distress at 12 - 15". I kept fudging on light distance with our XGS because I couldn't believe that closer wouldn't be better. Finally moved it out to about 20" and the plants seemed to appreciate that. However, I have four CXA3070 COBs placed just outside...

That little APV-16-12 would have enough power to spin at least 6 or 7 120mm PC fans. That'd be my guess anyway. Since it's 12V the fans will spin at full crank. If you just can't stand the howling you could install some sort of fan speed controller. I don't have time to look back right now...

A little tiny picture got attached but I didn't see any text

OK, yes, they're all switching supplies, but I'm just trying to keep it simple. For those of us who aren't as well versed as you and Mr. Flux and Supra and etc. Constant Voltage (or adjustable voltage would be even better) for providing power to fans, and Constant Current for LED drivers, yes...

Yes, absolutely, I shoulda mentioned that. That might be the most expensive upfront, but most reliable in the long run, eh?

Mr. Flux, could you provide a link or two? Also, for those of us who might get mixed up, we need to make note whether we're talking about a driver for the COBs or a PS for the fans. Both have been discussed in this thread and it's getting a little confusing. You're right, of course, it...

I don't know why kinddiesel went off on you like that. Lots of people use 12V DC fans. Supra's researched this stuff as much as anyone. I went cheap. I had a few PC power supplies laying around. Used a Kill-A-Watt meter to find the one that used the least amount of electricity at very low...