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So I'm not saying this is Mosaic Virus, but this is the exact visual symptom that pretty much all of the threads in all of the forums identify as Mosaic Virus. I only found it in this one leaf on just one plant, which otherwise looks fine, so it doesn't seem very viral, but who knows? Anyone...

Or something else? I'm in pro-mix with 25% extra perlite for drainage, top feed/water every other day with 500ppm GH nutes till runoff, 6.2pH. Wouldn't they droop if too wet? And they're never droopy, just yellow and burnt fan leaves, mostly toward the outer leaf/tips, hard to believe it's...

So, most of my fan leaves are going crispy and brown, as in the pic below, and I don't want to try the wrong cure attempt and just make it worse. Most of the fan leaves are doing this at 3 weeks into bloom, yet the smaller leaves are not showing even the slightest tip burn? The plants are in...

I'd just done hydro for years but am switching everything to regular old pro-mix in nursery pots now for reasons I'll skip for brevity sake. So far most of my plants seem happy enough with it but enough show various leaf symptoms that I must not quite have the hang of it yet and need some tuning...

So this symptom has been showing up too often this year, yet never in all the past years I've grown. I've tried varying many factors yet can't seem to shake it. It's not a lack of any nutrient in the rez, I use quality nutes, kept fresh, changed often, pH5.8 and 800ppm right now. I used to grow...

So I got one freebee Dutch Passion Blueberry seed from Attitude, grew to, cloned it, and now two of it's offspring are one week into flowering. In the pic below of nine plants they are the rear-center and rear-left two plants, the lankiest most stretched of the nine. DP website says "A dense...

So along with all my paid-for seeds from attitude I got a bunch of those UFO free seeds and am wondering if a strain should be judged from a single seeds results? Or does that vary a lot by strain? UFO singles include breeders like G13 Labs, Dinafem, Dutch Passion, etc. So just wondering if a...

Not sure if there is such a strain, but I'd love to fine something that can hold itself up even with heavy buds on it, so individual plants can be removed or added at different times. My current AK makes heavy buds but has the weakest branches of any strain I've had, it can barely hold itself up...

I use square pots and at first I thought Hydrofarm's Square White Pots were a great design, lots of small drain holes to retain media better than nursery pots, and bottom shaped to drain well, all of which is true, BUT, I noticed all my plants in these pots generally looking less healthy than...

Sorry I don't have a pic of the plant, but here's one of my first "trainer" single place RDWC. What happened isn't hard to visualize though. I put a well rooted clone in this setup and at first it worked great, plant quickly grew to a small bush, just wider than the bucket and about as tall...

For all the years I've grown as far as I can remember I've had fungus gnats around, but never really paid any attention to them as plant health was fine and all went well enough, so I figured they weren't a big problem. Lately though I've had some root health issues yet haven't changed much if...

On my overall healthiest and happiest looking plants in veg under MH I'm getting this upward leaf edge curl and not sure exactly what it means? Nutes are fresh, pH 5.8, temp is 75 and light is cooled so it shouldn't be heat. Anybody know what this indicates? Thanks!

Trying to get the hang of rockwool and not sure what I'm doing wrong, please advise if you know rockwool well. These plants were happy and well rooted into their upper 3" rockwool cubes, but since placing them on top of their lower 4" cubes some have taken well to it while most are a bit droopy...

Been growing a long time via other methods but entirely new to rockwool and fairly new to ebb and flow, and could use some basic watering theory if you rockwool pro's would be so good to me. I'm trying an ebb and flow system with 4x4x4 rockwool cubes. I've received already established plants...

So I just planted 5 seeds in promix, 4 came up and are happy seedlings, and after a few days of the 5th seed not emerging I carefully dug it up and put it under my microscope. I opened it up to find it's flesh turned to a white mush and three fungus gnat larvae happily writhing about inside...

I've been using the same method for more than a decade with no previous trouble(top feed into perlite), but recently getting persistent plant distress, even a few plants dropping dead while others on the same top feed system are ok. Temps in the 70's, pH steady 6.0, GH flora in RO water, change...

So this is my first time using feminized seeds, I've grown them to mothers, taken clones, and the clones are rooted and ready to go now. So my question is: are they so reliable as to be female that it's a safe bet to go ahead and bloom them? Is feminization 100% predictable? or do a few males...

Just got a new Lumatek 1000w in the mail and it has a 12 volt DC output just above the lamp output, which my other only slightly older Lumatek's don't have? It's not mentioned in the instructions, on the box, or on their website, and nothing from a google search? I can only guess it's for some...

So I'd done top feed forever, but after all the buzz around DWC decided to try it. Built a single RDWC unit to get the hang of it before going all out. Main 5gal bucket has a 8" net pot lid with hydroton and a dual air pump with fairly high output, second 5gal is the rez and circulates water...

So I just picked up a few 1000w HPS bulbs to replace my old ones. Bought one each of some of the better rep names, Lumatek, Sunmaster, Digilux, Ushio, Solarmax. Going to set up a test stand to compare which has the best lumen output with my lumen meter. Haven't bought a PAR meter yet, kind of...