The tips of my 2wk/o's leafs are turning yellow/brownish? any ideas? no ferts have been used yet. thanks
can you answer these questions as much as possible so we can help you out better? SOIL: What STRAIN are you growing? What was the establishing technique? (seed or clone?) What is the age of your plants? What PHASE (seedling, vegetative or flower) are the plants in? What Technique are you using? (SOG, SCROG etc) What size pots are you using? (Include how many subjects to pot) What substrate/medium are you using? (percentage of perlite, vermiculite...etc?) What Nutrient's are you using? *Knowing the brand is very helpful* What is the TDS/EC/PPM of your nutrients used? What is the pH of the "RUN-OFF"? What method of pH test was administered? When was your last water? When was your last feeding? What size bulb are you using? What is the distance to the canopy? What is your RH Factor? (Relative Humidity) What is the canopy temperature? What is the Day/Night Temp? (Include fluctuation range) What is the current Air Flow? (cfm etc.) Is the fan blowing directly at plants? Is the grow substrate constantly wet or moist? Is your water HARD or SOFT? Has plant been recently pruned, cloned or pinched? Have any pest chemicals been used? If so what and when? Are plant's infected with pest's? HYDROPONICS: What STRAIN are you growing? What was the establishing technique? (Were the seed or clone?) What is the age of your plants? What PHASE are the plants in? (seedling, vegetative or flower) are the plants in? What Technique are you using? What substrate/medium are you using?(Hydroton, RockWool etc.) What is the Nutrient temperature? What Nutrient's are you using? What is the TDS/EC/PPM you are using? What is the pH of the "Tank"? Are you sure your calibration is correct on your equiptment? When was your last watering? When was your last feeding change? (ie. grow-bloom-micro-additional) What size bulb are you using? What is the distance to the canopy? What is your RH Factor? What is the canopy temperature? What is the Day/Night Temp? (Include flucutaion range) What is the current Air Flow? (cfm etc.) Is the fan blowing directly at plants? Is your water HARD or SOFT? Has plant been recently pruned, cloned off of or pinched Have any pest chemicals been used? If so, What and When? Are plant's infected with pest's
temp, light, ph are all things that come immediately to mind...answer the questions and we will all chip in our $0.02
Or are you growing in miracle grow? (which would be the root cause if so (time-released ferts = gambling)
I should probably note that the entire leafs seem to be losing their pigment, carrying a bit of a yellowish hue!?
a day later and it getting worse eh?....blow by blow reports wont help it ....you need to answer the questions or the experienced ones here cant help
I don't know what you got going on here. I'd say skip the PUR water (stripping minerals you need as well as the chlorine) and just use tap water for a few days. Let your soil dry out a bit and then just give it a nice flush with some cool, fresh tap water. We all have the tendency to baby our plants, but if you have good soil it really shouldn't matter much what you do. A thing to remember with soil-grown plants is that it is much easier to OVERDO things than underdo them. Give a little more room between the plants and the lights (if they want it they will go get it, no?). And make sure the fan isn't blowing too hard on those young sprouts. You are definitely doing something wrong if all you have is 4 leaves after 2 weeks and everything is going yellow/brown. In conclusion, give the plants a little more room between the light, don't windsweep them with the fan, use normal tap or alternatively bottled spring or mineral water, play them some bluegrass and send them some positive vibes. Don't worry so much and don't over-baby them. As a wise man once said....marijuana is a weed and it will grow to spite you. Peace, BB