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04-23-2010, 01:40 PM #25
Senior Member
Yellow and Brown crispy leaves!
Too little light, too far away. Sativa's can be a bitch if using CFL's since the plants tend to get so tall. CFL light only extends about 6-8 inches, so lower region of the plant will suffer greatly.
Originally Posted by batlin
Likely rootbound. Let the soil dry enough to carefully check the roots.
Originally Posted by batlin
You can not check runoff ph using test strips or drops that have a color-coded result. The tinting of the runoff skews the results. (same thing after adding nutrients to the ingoing water) Definatelly do not chase your ph around or make any changes based on your runoff numbers. They are wrong.
Originally Posted by batlin
Never use nutrients to balance your ph. You are overdosing them tremendously, and likely screwing-up the ph instead of fixing it. Fox Farms was kind enough to provide you a weekly feeding schedule that works very well. Follow it. (plain ph'd water inbetween feedings only if necessary)
Originally Posted by batlin
Get some phDown by General Hydroponics, or a similar phDown product. White vinegar or lemon juice as a temporary ph adjuster, but only for short periods. But get the right tool for the job you've already started. :thumbsup:
Ditch the Superthrive. It isn't necessary, doesn't work well with other nutrient sources, and can do more harm than good. FF Grow Big and Tiger Bloom each have almost all the micronutes you'll need. In flower, the only additive I give is unsulfered molasses at 1 tsp per gallon of properly ph'd water, once a week. In my garden, molasses replaces all budswell products, carbo-load products and CalMag products, since that's what they are made from anyway.
Originally Posted by batlin
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