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Recognize this? I don't. They develop quickly (overnight) and there aren't many (maybe six patches in a big tent of plants). They usually are like this, where they only affect one side of the leaf. I'll fill out a diagnosis form in a bit. I thought something might simply recognize this...

I've been reading "hugely* contentious debates on the reflectivity of aluminum foil -- ones with folks investing enormous amounts of argument and discussion time. Yet there's an *incredibly* easy way to end the debate FOREVER, and help us grow better plants -- which is what we're mainly here...

A quote from a seller on eBay who specializes in UFO-type LED growlights: "Evolutions in the white HO LED actually produce more blue than blue LED's." Does anyone have any evidence to show this is true? And secondly, I'm assuming this would be in the higher Kelvin range of cool white/blue...

I just bought a new liter of Earth Juice Bloom, shook it, and then opened it for the first time. It burst open, spewing about 1/4 of the bottle out the top and onto the table -- like a mini-volcano. I tried finding Earth Juice's support number, and found a reviewer who said that customer...

Summary of the problem: The plants are in the third week of flowering. Over the last few weeks, chlorosis has been hitting older leaves, accompanied by necrosis. The problem starts at the tips and proceeds *unevenly* down toward the petiole. It's not interveinal, nor does it seem to attack...

I have a number of strains in my current soil grow, as well as a number of soil mixes. 95% of the plants are literally doing fantastic, so I'm quite happy. They range from two week old seedlings, to about a month old. I have identified, though, two DISTINCT leaf problems -- and each problem...

I'm putting together my first soil grow, and thought I'd experiment with a three different mixes -- to see which one worked best for me. The seedlings are ready to transplant into my 3-gallon Roots Organic Smart Pots, so I'm ready to get my mixes down pat. After a lot of reading, I have just...

I'm planing my first indoor soil grow, and it'll be a fair-sized grow--about 60 plants. They'll go into 3-gallon Smart Pots, so that translates to 180 gallons of mix. That's gonna put a dent in my budget. So, I'm wondering what mix you'd recommend that will be cost-conscious? For example...

Hi all, I ordered some CO2 equipment haphazardly over the last six months. But now I'm stuck. I turned it on super-slow (at least, that's what I thought) and it emptied the tank in 24 hours. Here it is: I guess I don't know how to use this. Can someone give me a few tips? Thanks...

I've been using General Hydroponics main line (Grow, Bloom, Micro) for my first few hydro grows (hybrid drip/DWC) -- because I was a total newbie and GH is a nice, easy, reliable line of nutes. I have, though, been looking forward to switching to a hydro line that's either mostly or fully...

Hi All, I'm trying to diagnose this leaf problem. It's currently affecting almost every plant in the room, some significantly (half the leaves), others totally minor. It doesn't seem to have any pattern: the edge plants (least light, least heat) have it no more or no less than the center...

Any growers out there that have some experience growing BC Bud Depot's "Original Blueberry"? If so, any tips or tendencies?? Any major differences between that and normal Blueberry? It'll be on a hybrid Drip/DWC system. I might do a speed grow, like a SOG--only because I mis-timed the...

Hi Everyone, This is three weeks into flowering. I think it's a Chrystal or AK-47 (forgot to label this one). Rather than give all the details, maybe experienced veterans will know what's doing this without a second look! :-) Thanks for any ideas! ~jessie

Hi All, This is at three weeks into flowering. (The messy front of the SCROG is from some modifications I'm working on.) Two 1,000 watt HPS, Drip System/DWC Hybrid (air stones for roots that reach the water), Grow-Rock Medium (like Hydroton, but more surface area). CO2 starts tomorrow...

Hi All, I just wrote an entire post, very long and detailed, and then clicked the close-tab button on Firefox. Damn! Anyway, I have some problems with my seedlings. At two weeks post-germination, they suddenly went bad: huge bottom leaves (unusual in itself), that got a bit yellow and started...

I'm posting these to get your feedback (critiques and suggestions) for my first "real" grow. I've done a few small grows in a pre-fab tent, but this is my first in the room I built. Rem: I'd love suggestions from veterans on how to tweak this system. It's about 3 1/2 weeks from sprouting...

I'm growing about 36 plants (AK-47, White Widow, Ice, Chyrstal, LA Woman, Afghan, Skunk, maybe a few others) in about 36 square feet of a 200' sq. foot room (see pics). It'll probably be a SCROG, but we'll see how things go in the next week. Anyway, most of them are three weeks into veg. --...

So, my bat-wing reflector came with a socket and cord--and the cord plug doesn't match my ballast. Can you tell me if there's a cheap and easy way to connect this lamp cord to my ballast? (Plug converter? Different cord?) Thanks for the help! ~jessie PS: Yes, I know that the bat...

I got one of those normal "registered mail" yellow slips in my mailbox yesterday, saying my (seed) delivery needed to be signed for. This is my first order from BC Bud Depot (though I've made five or so orders from other sources), and 1) the BC Bud Depot website seems to be down this morning...

I have seedlings that are 24 days from germination. I've been looking through four or five books (I practically have 'em all), and I can't find the answer to this: When we're counting the weeks of vegetative growth, do we start from germination? But it says on page 21 of Grow Great...