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Thread: Second time growing, first grow thread.

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    Quote Originally Posted by CityDweller View Post
    Just had a nice read through. My last water source was similar to yours. 7.2 out of the tap. 8.4 after it sat for 24 hours.

    While most disagree with me, my grows were all better when I PH'd the water and or feed.

    For plain water, I found that just a few drops of grow nutes would reduce the PH to 6.0. I used grow instead of PH down. For heavy feeds,the nutes reduce my PH to 4. I used PH UP to get it back to 6.
    CityDweller I do believe you're right mate, however, there are some important factors growers need to learn about the soil they are using before they mess about with PH..

    Soil can buffer PH levels very well, but some believe it or not increase PH and some decrease it (not so much keeping a balance), so you need to find out what your soil is doing before adjusting PH

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    Thanks citydweller, good to know it's not just my water. I had just been ignoring the problem until I started hydro but I might start looking at the ph again.

    Ice, how would you test the ph of soil?

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    Quote Originally Posted by Agent Green View Post
    Thanks citydweller, good to know it's not just my water. I had just been ignoring the problem until I started hydro but I might start looking at the ph again.

    Ice, how would you test the ph of soil?
    Well after speaking with CD mate it seems I may have been checking it incorrectly (I checked using tap water and CD explains that I should have tried using RO/distilled water)..you can use this guide


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    Dunno if it of interest but bluelabs brought out a probe that's supposed to be amazing for reading conditions in the medium. Comes with a bluelab pricetag though

    Sent from my SM-G960F using Tapatalk

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    Thank you, seems simple after you explained it but I couldn't work it out.

    New scales have arrived, this time I wont stand on them... Went with a 20g 0.001g accuracy and 3kg 0.1g accuracy. Now I might be able to get close to weighing 0.005g of Ammonium Molybdate Tetrahydrate for 1 litre of nutrients


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    Had a slight issue, forgot to move her down and the top bud touched the LED not sure if it will recover. I just hope the other top one doesn't reach the LED's. Seem to be fine as long as they are not touching it, no bleaching. Not much space left though, might have to resort to chopping the top of the bud off...




    Finally got round to weighing out and mixing up my part AB Flower nutrients so started on 1/4 strength today. Had a plain water last time to flush any crystal build up. Still not sure if I should be using hydro nutrients in soil but I am going to anyway.


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    You 100% on red ? Plants will always think its approaching night hence stretch

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    The LED's are the Luxeon Sunplus 35 2.5% blue ones. Do you think it looks stretched? I did think about going with the 12.5% LED's but read that they really don't need much blue light. Looking at the graph it seems about 10% relatively.

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    Quote Originally Posted by Agent Green View Post
    The LED's are the Luxeon Sunplus 35 2.5% blue ones. Do you think it looks stretched? I did think about going with the 12.5% LED's but read that they really don't need much blue light. Looking at the graph it seems about 10% relatively.

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    Yeah little stretched for led. I think a bit more blue would control it a bit more but 2.5% should be ok. I read as low as 5% is ok.

    How many watts ?

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    The max on the driver is 36v @ 1.67A but I am running a little under max. Maybe 35W. The space is pretty much 60cm by 30cm but only using half of it really.

    It is G13 Haze so some sativa.

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    Quote Originally Posted by Agent Green View Post
    The max on the driver is 36v @ 1.67A but I am running a little under max. Maybe 35W. The space is pretty much 60cm by 30cm but only using half of it really.

    It is G13 Haze so some sativa.
    Fair enough if a haze. Could be just on low side of watts but will be impressed with what you get for 35w

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    Went to double check the voltage and I am actually up to 34.6v so closer to 50 or the 60W max rating.

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    Quote Originally Posted by Agent Green View Post
    Went to double check the voltage and I am actually up to 34.6v so closer to 50 or the 60W max rating.
    Plenty then. Are these good efficacy emitters?

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    The ones I have say 1.80 PPF/W @ 100ma 25c. At 30v each LED should be running at 100ma and the board is probably 30-40c. Dunno if that is the best but I wanted to try them, seen some manufacturers stating around the 2.3-2.6 PPF/W for a board.

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    Thought I had a bit longer to go before she hit the light but today I have only a few mm left. Must have enjoyed the feed.

    Is there a better option that just cutting an inch or so off the top? I don't really have anywhere bigger for her to go. Shame to lose the bud but lesson learnt. Leave more space!


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    Quote Originally Posted by Agent Green View Post
    Thought I had a bit longer to go before she hit the light but today I have only a few mm left. Must have enjoyed the feed.

    Is there a better option that just cutting an inch or so off the top? I don't really have anywhere bigger for her to go. Shame to lose the bud but lesson learnt. Leave more space!


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    Just pinch and roll the stem using low medium pressure until she weakens and then bend her over ()

    Do it slowly and you will be fine. Dont break the stem and dont let it kink over. Aka supercropping.

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    That's a better idea! Dunno why I didn't think about that as I supercropped her in the beginning.

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    Seem to be doing ok from the supercropping. Hopefully I bent it far enough down so they don't hit the light again. The bud that already hit the light is recovering slowly so bent that one too. Impressed that within a few hours they were already pointing back at the light.


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    The bud just keeps on growing.



    The burnt bud site is showing a bit of growth but not so much. Hopefully that one doesn't need another bend.



    Decided to bend the big bud again... Stem is looking a bit worse for wear. Getting a little hazy stink to her now after rummaging in the foliage


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    Starting to look a bit of a mess now, still trying to work out how to take a good photo. Upped the nutrients to half strength, see how she goes with that. Pretty happy with the progress, looking a lot better than my first try. Need to work on an even canopy next time.






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