Edge of leaf turn pale, help!!! (Setting + Plant picture included)

Discussion in 'Growroom Setup' started by Oscarrzz, Jul 17, 2017.

  1. Oscarrzz

    Oscarrzz Registered

    As the title say, this is the first time my amigos and I growing cannabis in this indoor-controlled environment.
    We have did our research and so far these are the best settings we could come up with now.
    Some of the setting might not be the best practice to get maximum harvest as we are having a budget and also experimenting on this, and just to be true, we will be more more more than happy already as long as we have grown anything.

    And here we go.


    First of all, this is the grow box, it's about 1000 x 400mm, temporary using this size as we will move it into a bigger environment when it grow.

    [​IMG]


    Here is the setting that I have, do recommend if I need some others critical equipment.

    1. Temperature & Humidity sensor
    Generally we keep the humidity above 54% but it's dropping quite quick, maybe is my country weather.
    (humid and hot for all years, no season, only season is raining season / no-raining season)
    For temperature without light is about 27.8 degree Celsius while with light is 28.6 degree Celsius, the temperature is kinda constant, so day and night not much difference.
    [​IMG]

    2. Mini fan inside the grow box
    [​IMG]

    3. Soil Moisture & PH detector
    For moisture, we do my best to keep it at the green area of the detector.
    While for the pH, we water the plant with filtered tap water but adjust the pH with lime juice.
    [​IMG]

    4. Exhaust fan for air flow in bottom & air flow out on top.
    [​IMG]
    [​IMG]



    PROBLEM:
    The strain we growing now is the Royal AK from Royal Queen Seed.

    This is day 5, and you can clearly see the edge of the first two leave turn pale.
    [​IMG]

    Temporary solution:
    Seriously, we have no idea.
    But after some googling, we suspect a nutrient insufficient, could be Mg or Fe, maybe? Pardon but we not really sure about these stuff.
    Anyway this is what we do to help the plant.
    A well-pH water, mix with the fertilizer below, and measure to around 400 ppm.

    [​IMG]
    [​IMG]


    We are really trying hard here, and would really appreciate for any help we could get here.
    Experience grower please, we need your help. T.T

    Thank you everyone for make it until this point of the long post.
    Appreciated.
     
  2. raymont

    raymont Registered+

    Looks fine to me



    [​IMG]


    Here is the setting that I have, do recommend if I need some others critical equipment.

    1. Temperature & Humidity sensor
    Generally we keep the humidity above 54% but it's dropping quite quick, maybe is my country weather.
    (humid and hot for all years, no season, only season is raining season / no-raining season)
    For temperature without light is about 27.8 degree Celsius while with light is 28.6 degree Celsius, the temperature is kinda constant, so day and night not much difference.
    [​IMG]

    2. Mini fan inside the grow box
    [​IMG]

    3. Soil Moisture & PH detector
    For moisture, we do my best to keep it at the green area of the detector.
    While for the pH, we water the plant with filtered tap water but adjust the pH with lime juice.
    [​IMG]

    4. Exhaust fan for air flow in bottom & air flow out on top.
    [​IMG]
    [​IMG]



    PROBLEM:
    The strain we growing now is the Royal AK from Royal Queen Seed.

    This is day 5, and you can clearly see the edge of the first two leave turn pale.
    [​IMG]

    Temporary solution:
    Seriously, we have no idea.
    But after some googling, we suspect a nutrient insufficient, could be Mg or Fe, maybe? Pardon but we not really sure about these stuff.
    Anyway this is what we do to help the plant.
    A well-pH water, mix with the fertilizer below, and measure to around 400 ppm.

    [​IMG]
    [​IMG]


    We are really trying hard here, and would really appreciate for any help we could get here.
    Experience grower please, we need your help. T.T

    Thank you everyone for make it until this point of the long post.
    Appreciated.[/QUOTE]
     
  3. Weezard

    Weezard Registered+

    Do not add any ferts to a plant that young.
    Throw out that moisture meter.
    It is lying to you.
    The leaf tips show that it's over watered and suffocating
    Just weigh the container filled with dry soil. weigh it again after watering and you will know exactly when and how much to add.

    "Patience is the companion of wisdom." --Saint Augustine.
    While you are being patient, click on the link in my signature and do some reading.
    The more you know, the mo' betta you grow.

    Aloha,
    Wee 'zard
     
  4. Oscarrzz

    Oscarrzz Registered

    Wizard! Thank you so much.
    So glad to get advice from someone know what's happening.
    Yea i think we shouldn't add the fertilizer, we are just panic and don't know what we are doing.

    Here is little update:
    The edge seem fine already, the leaf still growing so we guess is fine.
    But the leaf somehow lift up straight and stay in this weird position.
    Does this indicate something?

    [​IMG]
     
  5. Oscarrzz

    Oscarrzz Registered

    "Just weigh the container filled with dry soil. weigh it again after watering and you will know exactly when and how much to add."

    1. But how do we know how much water to fill without using the moisture mater?

    2. Is the method you say function as below:

    So let say,
    container before water = 500g
    container after water = 550g

    Then we weight the container from time to time, when the weight drop around 530g then we water it?
    But how about when the plant grow bigger? the weight will change, then we change the setting from time to time?


    Sorry if our question sound too amateur, but indeed we are amateur. Hahaha.
     
  6. Weezard

    Weezard Registered+

    If you start with an identical, empty, container and put in dry soil you will know what "too dry" weighs."
    Then you water a little bit to wet that soil and wait about 10 minutes for the soil to get evenly damp. Then add water until some runs out of the weep holes.
    Now you know what too much water weighs.
    That is your range.
    With an older plant you can watch the fan leaves when the just start to droop, that is the critical point. weigh it then and do not let it get lighter than that.
    Cannabis needs to cycle wet to dry. constant wet will kill it.
    The rest is common sense.
    You youngsters may be able to just lift the container and judge it's needs.
    I'm quite old an can no longer do that, so I weigh them.

    As to what the li'l 'scaper is praying for?
    Consensus is, praying for air conditioning. :)
    Raise the lights a few centimeters and see if she relaxes.

    And mahalo, but I'm no wizard.
    Quite the contrary. I'm just a wee lizard learning right along side you. :)

    Got two, black, thumbs so I have to "science the shit out of it" to get a decent harvest.
    Patience is the companion of wisdom.

    Aloha,
    Weeze
     
  7. Oscarrzz

    Oscarrzz Registered

    Thanks Weeze, that is really helpful.
    We already did what you have say and hope for the best.
    I'll give you an update when she get better.

    As marijuana is actually still consider as drug in my country, we really got no one to consult.
    Thought we are gonna do this by ourself, but so grateful that we found this forum and we met you!
    Pardon me if it sound too dramatic, but the struggle is real.

    Thank you again Weeze!
     
  8. Weezard

    Weezard Registered+

    You are welcome.

    Here's some general advice.

    Weakest link;
    To thrive, plants need air. water, light, and nutrients.
    A good soil has everything a plant needs. Additional ferts are unnecessary.
    Water should be added only when needed and a good soil will buffer the PH so a
    wide range 6.0 - 7.0 would be fine.
    Air needs to be moving for transpiration, and dissolved in the water to supply oxygen to the roots.
    Light has a minimum, and a maximum.
    Sounds like you are near the equator. If you put them outside, the noonday sun can reach 93.k Lux. Cannabis stops growing and begins to "bleach" at 91k Lux.
    If any of these is in short supply the others are not relevant.
    The weak link will be the limiter.

    Maximums:
    "More than enough, is too much!"

    First grows usually get loved to death.
    Cannabis is a weed and as such, it can take a joke.
    Somewhere between weakest link, and lethal dose, is a happy medium.

    Growing a single plant carries a 50:50 risk of it being male.
    If that seed is feminized, never mind.

    Edit:
    Just looked up the Royal AK. It's feminized and auto-flower.
    If you don't love it to death, it will be an easy grow.

    You did not give any details on your lights.

    They look to be LED.
    So what is the equivalency?
    Might be listed, but maybe not.
    I'd settle for the actual Watt -age. :)

    Aloha,
    Weeze
     
  9. Oscarrzz

    Oscarrzz Registered

    In fact that's very true, maybe our love are gonna suffocated it.
    But it just like baby, anything can go wrong.
    We just hopefully we feeding the baby milk instead of steak.

    and this is what happening since yesterday night:
    The stem seem like can't support on it own, but we are pretty sure we have good air flow in the growbox.
    So we suspect something else, and for the first time we give it a good flush.
    We measure the pH of the water drip through the pot and it slightly alkaline, around 7.
    And we also suspect that we had never water it properly.
    Before that we are just using water sprayer to moist it, compare to today flush it til water drip out from the pot.
    Lets's hope it get better later.
    [​IMG]


    Anyway for the light, we measure it using the same probe, as below:
    The light sensitivity very high when near to the LED.
    [​IMG]

    However, worry that nearer to the light will cause the leaf to get burn, we lower it down to around 200 instead of preferred 400.
    [​IMG]

    These are the light bulb we use, current setting is two unit of that 9W LED as another light bulb make the growbox slightly hotter.
    [​IMG]

    Is all this information helpful?
     

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