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Thread: Seedling issue

  1. #1

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    Default Seedling issue

    Hi all.

    Long time lurker. Finally took the plunge to start my own and enjoy the fruits of my labour. I have done a lot of research but now putting it into practise !

    Some of my seedlings are taking off like a rocket but some are...... well dying ?

    Growing

    Growers choice XXL Monster bud Auto x9 - 12 Weeks Seed to Flower (Apparently)


    Running on 18/6





    Set up.

    120x120x200cm Tent.

    Sunmaster 400w Cool Delux Metal Halide - First 4 Weeks VEG

    Sunmaster 600w super HPS son-t - For flowering

    Garden Highpro profan tt Extractor Plus Rhino Carbon filter



    Temps

    Lights are 18 inches away

    Lights on - 27 to 31 - Depending on outside temperature.

    Lights off - 20 - 23



    Humidity

    Lights on - 35-50

    Lights of - 50-70 - Stick on the Dehumidifier if it gets to high.



    Nutrients
    General Hydroponics
    Per 1 gallon
    2ml Cal-mag
    1ml micro
    1ml gro
    0.5ml bloom
    0.5ml power roots - Plagron
    0.5ml Pure zym - Plagron

    Feeding
    1-2 times per day - Just a few small amount around the seedling.





    Medium

    Coco + Perlite


    PH
    5.5 - 6.3 on Change on each feed.
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  3. #2

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    Default

    For coco... All you need is Canna Rhizotonic, Canna Coco A+B. And pk 13/14.



    Drop the calmag.
    Drop anything but your base nutes..
    Drop the flower bloom!!

    Feed 5.6 ph, 0.8 ec, every other day.

    And again i highly recommend switch to Canna Range as it seems you are fully equipped. Would be sad not to work with optimal fertilizer.

    Current grow

    https://www.thctalk.com/cannabis-for...-Covid-19-Grow

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  5. #3

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    Default

    Hey brother, congratulations on starting up your first diary. I like general hydroponic nutrients they allow you a lot of flexibility and exactly how you utilize them.

    I see you're running HID lights If you were doing LEDs then feeding Cal-Mag right now would be a good idea, but honestly I think you should drop it for right now. In my opinion it's better to wait and tell you see a deficiency unless you have LEDs then they're pretty much mandatory with Coco.

    You're really going to want to know what your background EC or total dissolved solids are and then keep a check on those, I'm sure you're at a safe feed level as far as your nutrients go but if your background water is quite high and in minerals you may not be safe in total.

    I don't know if you're familiar with general Hydroponics rapid rooters, they are cocoa plugs that they pre-charge with their nutrient solution at the rate of 1 mil grow, 2 mil micro, and 1 mil bloom per gallon of water. I find that to be a really great feed strength for seedlings. I think adding in your root stimulants and your enzymes at the level you have is great.

    With Coco it's best to water your entire pot, pre-charge the coco before you ever put a seedling in. Then you water out around the edges of the pot away from the seedling and let it go searching for the water out around the edges. If you give it a little bits here and there right around the seedling itself what you get her roots that never develop very large and they actually die back a little bit as they dry out and you'll end up with small plants in the long run.

    So I would encourage you to drop the cal mag completely right now or if you really want some to drop it down to one mill per gallon max. Then I would go with the general hydroponics recommendation for seedlings of 1 milgrow, 2 mil micro, 1 mil bloom per gallon of water.

    If you have the ability to check your background water for total dissolved solids and EC it would be a good idea to do that now.

    If you're on Tapatalk and you want me to come back to your diary you can put the @ sign in front of my name and it will tag me.

    Good luck

    "If science can't be questioned, It's not science anymore"

    ~Aaron Rogers

    "This is not an economic turndown, it is a takedown"

    ~ Catherin Austin Fitts

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  7. #4

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    Im not an expert but id say way to many nutes for seedling.

    Sent from my SM-G960F using Tapatalk

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  9. #5

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    Quote Originally Posted by Shreder View Post



    Drop the calmag.

    Drop the flower bloom!!

    ]
    Yes on dropping the cal mag,No on dropping the bloom is going to give you your magnesium and your sulfur. The amount of PK in there is not out of line for this stage of growth.

    Be sure to water the entire pots with your nutrient solution of course, sometime soon and then start watering out around the edges of those pots probably within about 3 days after you give the whole pot water. so once you water the whole pot you may not need to water again for about 3 days.

    Last edited by Jingo; 15-06-20 at 11:09 PM.

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  11. #6

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    Very nice @jingo ive never used GH.
    You reckon he following any feed table u familiar with?

    And bout calmag with leds u sure bout it being all way from seed?

    Current grow

    https://www.thctalk.com/cannabis-for...-Covid-19-Grow

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  13. #7

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    Quote Originally Posted by Shreder View Post
    Very nice @jingo ive never used GH.
    You reckon he following any feed table u familiar with?

    And bout calmag with leds u sure bout it being all way from seed?

    Current grow

    https://www.thctalk.com/cannabis-for...-Covid-19-Grow
    I've done extensive tests with my LEDs and general hydroponics calimagic and one mill per gallon right from the start is pretty much mandatory in coco, I've never had good results feeding two mil per gallon and I have had to go up to 1.5 ml per gallon with some plants in flower.


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  15. #8

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    Thanks for the information @jingo

    I have dropped the Calmag from the feeding schedule and will watch out for signs of deficiency before adding it back in and will adjust the nutrients to what you suggested.

    ~In terms of watering i will just water around the edge of the pot. I was a little timid in doing so encase they didn't get that far out at an early stage.

    I will invest in an TDS&EC Meter pen this week. I should have this around 1.2 and 2.0 ?

    Curious. Why do you need Calmag with an LED grow but not a HID ?
    Last edited by blazeftp; 15-06-20 at 11:20 PM.

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  17. #9

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    Quote Originally Posted by jingo View Post
    I've done extensive tests with my LEDs and general hydroponics calimagic and one mill per gallon right from the start is pretty much mandatory in coco, I've never had good results feeding two mil per gallon and I have had to go up to 1.5 ml per gallon with some plants in flower.

    Right now with Canna i dont need any calmag supp. Late veg and early flower... Waiting for deficiencies

    Current grow

    https://www.thctalk.com/cannabis-for...-Covid-19-Grow

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  19. #10

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    Quote Originally Posted by blazeftp View Post


    I will invest in an TDS&EC Meter pen this week. I should have this around 1.2 and 2.0 ?
    If you're talking EC you really shouldn't be above 1.0, you could get about as high as 1.2 but that would be your max.



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