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    Cool tube or air cooled hood?

    Just going to run one light so thanks for the info
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    Cool tube or air cooled hood?

    What do you guys think is best and any recommendations as price seems to vary quite a lot. I am in the UK
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    Led Users Unite!

    Going to use vipar 900watt for my first grow for about 4 plants in 1.2x1.2 grow room. Will I be able to use for seedlings? Any one got any tips for height of light with this led?
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    Dimond diffusion reflective sheeting. Glueing to grow room.

    Any one have any suggestions of best glue to fix to walls which are kingspan insulation panels with a silver foil backing? Will wall paper paste do it?
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    DIY Grow Room in outside wooden building

    Been away for a while .I am in the south of the UK
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    Nitrogen deficiency

    Thanks had not thought of that
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    Nitrogen deficiency

    Coco coir
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    Nitrogen deficiency

    No all three
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    DIY Grow Room in outside wooden building

    I am going to draw air from outside so in the winter was planning to use a green house type heater if its too cold .Have not learnt anything about using co2 yet.Would welcome any advice.
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    Nitrogen deficiency

    I have been feeding every other water using the guide on grow weed easy but obviously not enough.
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    Nitrogen deficiency

    I am on my first grow with just one young plant and I have got nitrogen deficiency. Bottom leaves going yellow. Do I have to wait until she needs watering again to increase nitrogen.I am using Flora series.nutrients.I have been using 1/2 teaspoon of micro in 3.8 litres of rain water with PH...
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    DIY Grow Room in outside wooden building

    I have decided to go smaller.1.2x 1.2 m. Going to use air cooled 600watt hps and 150mm fans for intake and extraction.Maybe go 900watt led in the summer. Just hoping temps will be ok.
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    DIY Grow Room in outside wooden building

    I am a noobi so dont know about using Co2 yet.
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    DIY Grow Room in outside wooden building

    I am planning to build a grow room by sectioning off a corner of the building. The building already has insulation but it gets pretty hot in summer about 30 degrees and down to 0 degrees in winter or more. It will be about 2.4 metre square. . I am thinking of using 75mm insulation board for the...
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