yellow spots and curling leaves

Discussion in 'Sick Plants and Problems' started by n00447098, Aug 13, 2007.

  1. looks like fert burn

    1. hydro, soilless or Soil & brand name of soil ?
    2. PH of reservoir solution?
    3. PH soil runoff?
    4. PH of water?
    5. Age of plants?
    6. What Fertilizer, dosages, and frequency?
    7. lites, wattage & proximity to plants
    8. Light cycle. 24/0,, 18/6,, 12/12?
    9. In light cycle how long?
    10. Room temps or reservoir temps
     
  2. foxfarm ocean forest soil. I'm not sure of any of the pH but I use distilled water.

    plants are 19 days old from germination and have been under a 400w HPS light 18/6 since then.

    the only fert I've used is pure blend pro grow which I've been using for 1 wk at 1/4 the dosage (7ml per gallon). Yesterday I watered with 1/2 the dosage (15ml per gal.) I water each plant 200ml of water daily

    temps are 80s but occationally can get up to 90s
     
  3. fox farms soil contains organic ferts ....which have shown to be too hot a soil in itself for some seedling which need no ferts for the first 3-4 weeks in soil

    and your supplement feeding on top of that

    as young as your plants are I wouldnt bother flushing to leech the ferts from the soil, just transplant to fresh FF soil....water only for 3-4 weeks then start off at 1/4 strength ferts
     

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