Yeah they look horrible. A friend gave them to me sense my first round of clones were not taking very well. he gave me 6, 2 of them look like this 2 have a little of this going on and 2 are perfect.
PH is my first guess. I thought they would have started to bounce back by now but all the new growth looks like this. I filled out this question list for another forum.
How long has this problem been going on? As long as I have had them I got them about 1 week after they got planted in soil. i assume they have been like this from the beginning
What STRAIN are you growing? Purple Haze I think but I got them from a friend and they may have gotten mixed up. They would be either Purple Have BlueBerry or DOA
What was the establishing technique? (seed or clone?) Clones
What is the age of your plants? 7 weeks
How long have they been in the soil mixture they are in now? 3 weeks
How Tall are the plants? Sick ones are about 1 foot
What PHASE (seedling, vegetative or flower) are the plants in? Veg
What Technique are you using? (SOG, SCROG etc) LST?
What size pots are you using? (Include how many subjects to pot) 7gal 1 plant
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?) Half and half Fox Farm Light Warrior and Ocean Forest
What Nutrient's are you using? Botanicare Pure Blend Pro Grow
How much of each nutrient are you using with how much water? *Knowing the brand is very helpful* 1TBS/1GAL according to directions for smaller plants was planning to up it to 2TBS/1GAL for the next feed
How often are you feeding? Every 6 to 8 days depending on how dry the soil is from the last watering.
If flowering, when did you switch over to using Bloom nutrients?
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect)
What is the TDS/EC/PPM of your nutrients used? No idea i don't have a meter
What is the pH of the "RUN-OFF"? About 5 but I am waiting for a digital meter in the mail to check it again. My stick in the dirt meter reads about 6.2
What method of pH test was administered? Using Strips? pH pen? Drops
How often are you watering? Every 6 to 8 days depending on how dry the soil is from the last feed.
When was your last feeding? 4 Days ago
What size bulb are you using? 600w MH conversion currently but will be turning another on when the bulbs get here.
What is the distance to the canopy? 13 inches
What is your RH Factor? (Relative Humidity) Low Humidity
What is the canopy temperature? 75-80
What is the Day/Night Temp? (Include fluctuation range) Day range 72-80 night 72
What is the current Air Flow? (cfm etc.) 500cfm exhaust and intake
Tell us about your ventilation, intake exhaust and when its running and not running ? Runs for 30 min every 30 min with CO2 running when fans are off for 15 min
Is the fan blowing directly at plants? Yes
Is the grow substrate constantly wet or moist? No
Is your water HARD or SOFT? Don't know the diffrence
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? Tap after it sits in a bucket for 24-48 hours with an air pump running bubbles in it
Are you using water from a water softener? Don't know what a softener is
Has plant been recently pruned, cloned or pinched? no
Have any pest chemicals been used? If so what and when? Neem oil every other day
Are plant's infected with pest's? A little (Spider mites) They had bugs when they were given to me.