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    Root Aphids?

    Hello to everyone. I'm doing a perpetual grow, having both autoflowers and photoperiods. Autoflowers are in first weeks of flower, some photoperiods are in late veg and some are seedlings. The current one is the third batch of autoflowers. The first one I had went really well, good yields and...
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    Maxibright CMH 600 watt

    Hello to everyone, I saw that Maxibright recently introduced to the market a "new" bulb - a 600w CMH that can be connected to an E40 fitting and operate with magnetic ballasts. From the promo of the website i'm linking: Brand new from maxibright, for 2020, the maxibright cmh 600w agro 3k lamp...
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    Making a veg soil mix without the need for "cooking?"

    Hello to everyone, I'm in a situation where I need to start urgently some autoflowers and I'm out of soils like Biobizz All Mix etc. With the lockdown here the only way to get them is to order them online since no growshops are open. Ideally I don't want to do that. I have a gardening soil...
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    Using UV light to lower THC concentrations?

    Hello to everyone, A friend of mine grew legally CBD plants but the problem is the outrageously low THC limit of 0,2%. After he completed the harvest he sent samples of the buds for lab analysis and results came back showing 0,6% THC and 13% CBD. Now he cannot legally sell those flowers. He...
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    Calcium/magnesium carbonate + amino acids

    Hello to everyone :). Let's suppose hardness of water is 180 mg/l calcium carbonate + 20 mg/l magnesium carbonate. I visited this link: https://www.easy-grow.co.uk/amino-acids-hard-water/ where it's stated: "The best solution for hard water problems is to use a hard water nutrient formula...
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    Problem:Unit was supposed to run at ~320 watts but does not draw over 70.

    Hello to everyone. I have tried to wire this unit: https://invisiblesunled.co.uk/products/ish320-diy-mk3-horticultural-lighting-kit-powered-by-samsung-lm301h. It consists of 4 x ISH150 MK3 Samsung LM301H boards +Meanwell HLG 320H C2100A driver. By mistake they had sent me Meanwell HLG 240 H...
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    Autopot for 15 gallon pot

    Hello to everyone. I am wondering if anyone has tried an autopot system with pots bigger than 7 gal. I have a fabric 15 gallon pot and was wondering if I could use a kit like this:https://www.autopot.co.uk/product/easy2go-kit/ along with a large enough tray to fit the 15 gal with success.
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    co2 for 1000 cu ft room

    Hello to everyone. I am looking to turn a 10x10x10 room into a closed growing enviroment. I have already installed a 12,000 BTU mini split a/c in the room. I want to run 6x315 CMH in there. For co2 supplementation I am planning on buying a 0,75kw CO2...
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    Portable a/c+2400w of led+hps

    Hello, as the title says i want to use a portable a/c in a room 8x8x10 with 1200w of hps (air cooled)and 1200w of led (true 1200w). Will a 12000 portable a/c be able to keep up? I have no intention of using co2 as it would have no meaning with a portable one hose a/c unit and i am stuck with...
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    13x10 Room: How to put bulbs?

    Hello, as the title says i have a 13x10x10 room (13 ft length, 10 feet wide) available for growing. I have 24 autoflower plants and 4 photoperiod ones vegging for about 1,5 week since their germination. I want to do a setup with 9x600w vertical but looking at the room i don't see how it would be...
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    Recommend a good contactor/relay for 5x600w hps?

    Hello, i have a 25A breaker which turns on my kitchen and i want to use it to light 5x600w instead. My plan is this: A)Disconnect the cables from my kitchen B)Connect them with cables of the same size (Pic B) C)Connect the cables with a female plug that is rated for that kind of amperage...
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    Layout for 10x10 room and 6x600w hps vertical?

    Hello, i already posted a thread concerning a question i have about electrical draw with my room and thought i should not confuse you in the same thread, as i am asking something totally different here...
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    Can I run 5500w off that electrical panel?

    Hello, I am planning on doing a grow in a 10x10 room. I am gonna use air conditioner along with 6x600w HPS. Max rated electrical draw of the 12000 BTU air conditioner I have is at 1330 W. Plus 6x600w HPS, we get at ~5000w (without calculating the extra amps ballasts draw when they ignite)...
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    8x10x10 open room+A/C

    Hello, i have a room that is 10x10x10 which i intend to use for growing. I am gonna enclose the bigger part of the room (8x10x10) with panda film. In this room there is a 12000 BTU inverter air condition (window unit). I am planning on running 3000w in this room vertical (5x600w). Now i know...
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    Exhausting into same room with open window?

    Hello guys, i wanna do a 2400w vertical setup in a 8x8 grow tent. I have 2 8" exhaust fans for ventilation and 2 6" inline fans for active intake. The room i have my temp in needs to stay locked for security reasons. It has a big window but for security reasons too, i cannot open the curtains...
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    Anyone who has used this grow tent?

    Hello, i checked amazon.uk and saw this grow tent http://www.amazon.co.uk/Quality-Portable-Hydroponic-Gardening-Hydroponics/dp/B00CTCWXMA/ref=sr_1_2?ie=UTF8&qid=1381758975&sr=8-2&keywords=bps+grow+tent. Has anyone used it? It looks good for the price at which it is being offered.
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    Autoflowers: Transplant to organic soil or not?

    Hello to everyone, i have been thinking about starting some Think Different autoflowering seeds under 1200w of HPS and i have a batch of organic soil mix for that purpose. My soil mix consists of: 13gallons of lithuanian peat moss 13 gallons of perlite 13 gallons of quality Humus Additives: 1...
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    Help me design this properly! :)

    Hello to everyone, i am planning a setup in a growspace 4x6 and 3x600w HPS that i am thinking about using (1200w in veg, 1800 in flower). I have got some questions for which i would really appreciate some answers! 1)I am considering a veg time of about 45 days. Do you think it would be better...
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    180w LED for what space?

    Hello to all, as the title suggests i would like to know if i could use a 180w LED for 8 plants in a 4x4 space. I intend to use it for VEG ONLY. For flowering i have 2x600w HPS. Thank you very much any answers!
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    Perpetual Setup?

    Hello, after my last and biggest grow ended in a very dramatic way, i decided to enter the game again. I live in a rented apartment and have decided to "extent" a bit the closets in my bedroom. The closets' dimensions are 6x2, i want to extend thei width to 8' so that i can have a space of 6x8...
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