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Thread: Still need mag?

  1. #1

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    Default Still need mag?

    This Critical is the biggest plant I have by far but I can’t seem to solve the deficiency.

    I have been giving Cal Mag at every feed but it still looks like it needs more?

    How to fix it? I don’t want to overdo the EC - do I get the feed to the correct EC (1.2?) then add the Cal Mag on top?

    Or should I foliar spray the cal Mag instead?

    I need to flip them to flower soon but want to get this deficiency fixed before I do.

    What would you guys do?

    Click image for larger version. 

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  3. #2

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    Default

    Hows your tap water?

    How much calmag are you giving?

    V8
    Mini veg tent grow: V8`s mini garden



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  5. #3

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    Give it a spray with Epsom salts 1 table spoon in 1ltr warm water


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

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  7. #4

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    Tap water is soft - 0.2

    Have been giving Cal Mag at 1ml - 1.5 ml a litre

    Will get some Epsom salts today.

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  9. #5

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    Default

    Quote Originally Posted by Allthegoodstuff1 View Post
    Tap water is soft - 0.2

    Have been giving Cal Mag at 1ml - 1.5 ml a litre

    Will get some Epsom salts today.
    Looks like a Magnesium deficiency. Epson salts should solve that issue. My tap water EC is 0.2 also. I add 1/8 tsp. per gallon which gives me an EC around 0.39. You want 50 to 100 ppm of Magnesium and this mix will yield around 100 ppm.

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  11. Default

    I see the members are already helping here Allthegoodstuff1, so on an unrelated topic, I noticed you're using that ultra flat heater!..this has interested me for a while,are you liking it?..would like your opinion on it if you wouldn't mind sharing.

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  13. #7

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    I like it Ice - it doesn’t have a thermostat though which is annoying so I just have it on a timer.

    It doesn’t take up any space in the tent which is useful.

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  15. Default

    Quote Originally Posted by Allthegoodstuff1 View Post
    I like it Ice - it doesn’t have a thermostat though which is annoying so I just have it on a timer.

    It doesn’t take up any space in the tent which is useful.
    How hot does it get mate?..I just wonder how many degress it can potentially increase

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  17. #9

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    It gets really hot in the tent when it is on. Noticeably warm when you open the doors and it is on vs when you open and it isn’t.

    I have it in the tent in a big drafty attic and it has done fine keeping temps up over winter.

    If space isn’t an issue I would probably just use an oil rad with a thermostat though.

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  19. Default

    Quote Originally Posted by Allthegoodstuff1 View Post
    It gets really hot in the tent when it is on. Noticeably warm when you open the doors and it is on vs when you open and it isn’t.

    I have it in the tent in a big drafty attic and it has done fine keeping temps up over winter.

    If space isn’t an issue I would probably just use an oil rad with a thermostat though.
    Sounds good, thanks for the feedback on that, I appreciate it

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