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    yellow leaves, white roots

    I am using STG, that white stuff. Not real impressed. I used hydroton last time and will go back to it. I see now that I have spider mites. I have used the SM-90 as per instructions but still they persist! I hope I can save this crop.
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    Myth busters - the real truth on CO2 in indoor grows

    I have made beer and mead. The mead is made with honey and ferments for about 8 weeks at a slow pace. The beer is made with sugars rinsed off cooked(155 degrees F) grains. Simple sugars seem to ferment faster. Adding more yeast will start my fermentation faster and be more robust. A five...
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    yellow leaves, white roots

    Using Ebb and Grow. nutes at 1100 ppm +/- 200 ph at 5.8-6.0 Lucas Method with GH fourth seek into bloom My first grow went extremely well, 3.5 ounces a plant. Now however they don't look too good. The stems are spindly, the leaves are going yellow and the flowers are not as big with the...
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    Lucas formula +rep for knowledgeable answers :)

    OK, feeling really stupid but what is 8/16. I am using GH. Is that 8ml Micro and 16ml Bloom per gallon?
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    ppm 2220, too much?

    Thanks for the help. I guess I can't go by the recommendation on the bottles. If I do the 3,2,1 it's way too much.
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    ppm 2220, too much?

    In the last two weeks here I am using GH micro at 2 tsp per gallon and Kool Bloom at 2 tsp per. PPM comes out at 2220 in 25 gallons of nutes in the Ebb and Grow. This seeems like too much, what do you think? thanks
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    is it mold or what?

    Thanks for the feedback on the Serenade, I will get some tomorrow. Also, should I rinse off the leaves after I spray with the baking soda? They now have a white powder all over them. Does that block the light, kinda like zinc oxide on the nose? Thanks again for the responses, good help. I...
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    is it mold or what?

    And what can I do about it? I am seeing small whiteish spots on the tops of the leaves. I can rub it off with my fingers so figured it is mold. I am using a CAP ebb and grow system. 73 degrees average temp in the room. Two 600 watt HPS lights. 6 plants that look good, second week into the...
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