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Thread: What am I doing wrong? (Growth taking forever)

  1. #1

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    Default What am I doing wrong? (Growth taking forever)

    Ok, so I have pretty basic setup;

    60cm x 60cm x 170cm tent
    4" RVK extractor fan
    4" basic 13W inlet fan
    A basic clip on circulation fan
    Invisible Sun ISH150 Pro LED light
    Growing in coco medium

    On it's 4th - 5th week.

    I'm running 12 hours on, 12 hours off, with inlet and extractor running at intervals for about 8 of those light hours, and clip on fan about 6 of those light hours.

    I've already ditched one grow, and have another, which you can see. I don't know if the LED lights are simply too strong, wondering if a reduction in hours or if I could fit a light controller to these to dim them down a bit? They are really bright (They say it can run from
    10w - 150w max at the wall so I suspect I can get a dimmer for it) or improvements need to be made environmentally. I've attached images of the setup. Sorry these may come out sideways when attaching. Appreciate any advice

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  3. #2

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    Coco looks really dry, how often you watering and what nutes are you using, lights could do with being on a bit longer 18/6 at least if an auto, photo 18/6 till flip

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    "Patience is bitter, but its fruit is sweet."

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  5. #3

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    What are you growing....auto or photo


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  7. #4

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    I've tried both but currently have auto's. I was watering every 4 days but when I got yellow discoloration and no growth on the first I ditched and attempted auto under the same conditions.

    As far as nutes. I didn't use any on this yet, but on the previous I was using Maxicrop plant growth stimulant (seaweed extract for early growth) on the 3rd week. I also have a bottle of bio bloom and a bottle of B'Cuzz root stimulator ready

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  9. #5

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    Quote Originally Posted by e11 View Post
    I've tried both but currently have auto's. I was watering every 4 days but when I got yellow discoloration and no growth on the first I ditched and attempted auto under the same conditions.

    As far as nutes. I didn't use any on this yet, but on the previous I was using Maxicrop plant growth stimulant (seaweed extract for early growth) on the 3rd week. I also have a bottle of bio bloom and a bottle of B'Cuzz root stimulator ready
    If auto you will need to put light on at least 18 hrs on, feed wise should be feeding now there's no food in coco that's why they would be going light in colour you got an ec and pH meters

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  11. #6

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    I know next to nothing about coco growing, (i literally have to make my grow's idiot proof,) so i use soil. If you are a beginner, i'd opt for soil over coco. I have the same light which is excellent, but with soil, you just bang the seed in, water every few days,no need for nutes for the first 3-4 weeks and now the only nutes i use is organicus 99 from late veg to harvest time, that is literally it. Best of luck, there are some amazing coco growers on here if you decide to go that route.

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  13. #7

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    You really need to feed twice a day. You cannot overwater coco.

    So long as your EC and PH are on point you can pour litera down them.

    I do with auto drain to waste. Always 20% run off. I am lazy so normally 30-40% run off.

    Also your lights are wrong. I run a 265w version at full pelt and day 1 seedlings under it. It runs 24/0.

    More light = more growth. Why slow her?
    Current Grow (3L coco autos) : Jumper's 2020 shenanigans

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  15. #8

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    That sounds like a plan. I've put some root stimulant in with the lights set to 16 hours instead of 12. My worry was that the LEDs were too bright. A lot brighter than I was expecting that the first time without glasses was lesson learnt. I've got a pH meter, but no EC meter. I'm using water filtered through a berkey filter. The tap water isn't too bad here but because the berkey filter holds a lot it's no issue just to pour some of that.

    Do you check your cables every so often? The good thing with the invisible sun is that I can replace the cables easily if they heat / degrade over time

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  17. #9

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    Just seen 18 hours. I'll increase the timers

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  19. #10

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    To be honest e11, think you might struggle without a ec meter, a lot of the recommended use on the bottles could be a bit to strong for your plants

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