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    Coco in 100l pots

    Okay, my friend told me he is switching from RDWC to Coco. Nevermind the switch or the reasons for it, just focus on Coco. His normal count would be over 20 plants. He told me he will be using 100l airports. When he told me that I was quite surprised. I understand he was working on 3 month-ish...
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    Bud leaves are light green/yellow

    Hi, I have no pictures as it is my friends. He told me fan leaves look nice and green, but bud leaves are light green almost yellow.
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    How often to feed Autos 6L pot

    I know that 6L is on the smaller side but it's 6L Super Air Pot. If it was a solid Pot 9 or 11tl would be more adequate I'd presume. Now the Super Air Pot dries out quite quickly so it needs more frequent watering. Okay, to be honest, this isn't me who is doing the grow but my friend. He isn't...
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    CO2 Question

    I see that the "day" temperature needs to be higher than normal, 23–25 centigrade, when using added CO2 they say around 30. I was just wondering. Wouldn't high temps be counter productive? Stomata need to open to let in CO2, when that happens water is being lost/released. If we raise the...
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    Organic feed and hydro?

    I know this question has been asked a thousand times, but this time it is asked with a different approach. Organic food and Hydro is a no, no; so they say. Let us put aside Bioponics that use filters for this matter. I had a grow in in Aero/NFT previously. Everyone strongly opposes the use...
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    THC, CBD, CBN, and Trichomes

    Hi everyone! What's the story with the 'harvest window' and cannabinod composition? There seems to be shortage of general consensus and solid info on the net. My main point of interest is Cannabidiol (CBD) Clear trychs are composed of precursor cannabinods. THC is not fully developed yet...
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    Minimum, optimal, recommended sizes of reservoir?

    Hi guys, What is the optimum size of res per plant. Is is like 2 gal per plant? If it varies from system to system let's break it down. Thanks all.
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    Deficiency?

    These (grey, slightly purple) spots showed up last week. Using Aerocloner. Would it be Phosphorus deficiency, so early? They 3 weeks old.
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    Hydroponics, plants don't smell much?

    Hi, My first time doing Aero/Nft. Before that I had a grow in soil/ -ess peat/perlite/vermiculite. I had a go at that time with the THC Bomb. Already when it was late vegging --> preflowering it smelled pretty nice and, you know, like good weed. But now in hydro in kinda doesn't smell much to...
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    Clones showing pistils on 18/6, wtf clones?

    Right, my friend is growing THC bomb. 3 weeks ago I took 2 clones of him. The plant wasn't showing any sex yet, so we were just chancing our arm, whatever; be it a male or female. He had her on the window and the nights are still short. She [his plant] didn't show sex even 2 weeks after I had...
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    How long can plants survive in Aero/Nft without water?

    Let's say if your pumps fails while you're asleep. How many hours before they are irreversibly dead?
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    Are reservoirs supposed to stink kinda funky after a day or two?

    When I open the lid it smells kinda like a fart or something. Is this normal, or something wrong? Brief history: 5 days ago I used Dutch Pro A & B, and Take Root. After 2 days I noticed the smell was kinda rank. I changed the res yesterday morning, put in only A & B this time, no Take Root (I...
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    LIGHTING....

    Brief summary: At the moment, I am using 3 HID lights: 2x 1000W HPS, 1x 600W MH. The 2 HPSs are for my flowering tent (8ftx8ft), and the 600W MH is for outside the tent (small area, still the same room as the tent) for my Veggeing unit and cloner (in some distance). The 2x 1000W are cooled...
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    pH goes up within hours -- Aero Vegging unit?

    Hi, My first time, I am running my vegging unit 2 days now. I have adjusted the water after the feed solution to 5.8 pH. And after, like, 3 hours it's already 6.1.... I know that it need time to mix and stuff, but it's just weird. Is that normal? What am I like supposed to be fixing the pH...
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    How many EC (or PMMs, EC preferably) for one week old seedlings?

    Currently, I have already popped open seeds in my Root Plugs: put in a wet paper towel for 30 hrs, today opened and inserted in the plugs. I expect to have seedlings within the next 2–4 days. I will then put 'em into my StinkBud vegging unit and under 18/6 600W MH. I know, don't scorn me yet...
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    Can you start off your seeds on a window in a root plug?

    I am about to start a grow, only for the first time from seedlings. I have 1000w bulbs, 600w bulb. I have used, once, the 600w mh in the past on my seedlings and it worked. This time I am thinking would it work to start of my my seedling on a window facing the South? It's June now, still...
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    How many holes (StinkBud) in the PVC posts, if I want to max out?!

    Hi everyone, I am, finally, assembling my systems. I am using the most up-to-date StinkBuds book, in which he advises to cut 3 holes per post. I have noticed that in his first version he used the same length post, pretty much the same amount of sprayers (7 former, 6 latter, different spread...
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    Stealing Electricity — suicide or ....?

    Hi everyone, I have recently upgraded my grow room (not yet operating) to 2x1000W and 1x600W HIDs. Lately there have been shit loads of busts in this country (Ireland) and I am starting to freak out. I am starting to think that a lot of grow rooms are being caught because Electric companies...
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    Aero pumps -- can I do with 15 mins segments?

    Hi, I am assembling SB system. The last part I haven't got is a Recycle Timer; they just cannot be got in Europe. My goal is to go 4 mins Off and 1 On. But for now I might have to settle for 15 mins OFF and 15 mins ON. I know it's really frustrating, but will it actually grow with such time...
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    Is Aeroponics wasteful on feed?

    Hi, I am assembling my (first) SB system. I will be running 3 separate reservoirs for 3 SB flowering systems. Each reservoir is 28 gal. I suppose that there is no need to fill each fully, SB doesn't really mention this in the book. I presume it'll be something between 1/2–3/4. Let's presume it...
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