Trouble Identifying Deficiency?

Discussion in 'Sick Plants and Problems' started by skinnyk, Oct 1, 2011.

  1. What type of medium; soil or hydro?
    Soil

    What brand and type of soil?

    Indoors or outdoors?
    Indoors

    What strain?
    Hawaiian Snow

    How old are the plants?
    58 Days

    What type of lights and how many watts?
    600w HPS

    What is your watering frequency and source of water?
    Water when dry, tap water sitting for 24 hours.

    What, how much and when was it fed? NPK?
    300 PPM nutrients solution (Truncheon EC Meter)

    What is the medium/runoff pH and PPM if in hydro?
    6.5

    What are the temps and humidity in the room?
    80F
    55% Humidity

    What size pots?
    5 gallons.

    Any bugs? Look real close.
    Not that I can see.

    Any other pertinent info?
    I have 7 plants and mix my nutrient solution in a 5 gallon container. When I measure the strength of the nutrient solution it read 300ppm (Truncheon EC x 500). Am I not feeding my plants enough? I always hear about overfeeding but AN recommends up to a PPM of 1600. Now 1600 may be over the top but it's far from 300.

    It should also be noted 300PPM is the highest strength I've ever fed them.

    Should I be feeding with a stronger nutrient solution? Pictures attached.
     

    Attached Files:

  2. I would up the ppm to 800 and see how they take to it.

    I can tell by a glance that those are hungry leaves :).

    Freak
    :smoke:
     

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