This is my first grow and hope I can get some help from the community experts... 100% of the seeds germinated fine and then they were planted in Light Warrior Seed Starter. They sprouted just fine. I had a 1000 W Metal Halide light about 16” from the plants dimmed to 75% to produce between 30K to 40K Lux at the top leaves (that is what I read as optimum for veg). I feed them once per week with Emerald Harvest nutes at 50% the recommended dose, plus full dosage of Cal-Mag with a pH of 6.0 to 6.2. I watered during the week as required to keep the soil about 50% moist using RO water and full strength Cal-Mag. The once per week feedings and any waterings during the week are all done drain-to-waste. I had a vertical standing oscillating fan blowing on them so the plants were dancing pretty strong. I also have a steam humidifier and an exhaust fan that pulls in fresh air from in the house and exhausts to outside the house through the light. Temps are around 75F and Humidity around 50% rh at the leaves. Once I move them into 5 gallon pots (in about a week), I plan to use 1/3 pearlite, 1/3 Ocean Potting Soil, and 1/3 coco as the grow medium, sort of a hydrosoil. As of now, 15 days from seed, the plants are 2.5” to 5.5” tall with a tip to tip leaf spread of up to 8.5”. Lighting is 18/6 during veg and moving to 12/12 at bloom.
My first problems from a week ago were thought to be combination of wind burn, too much light, and over-watering (some small amounts of algae formed on surface of the grow medium). So, I moved the light up from 16” to 24” to the tops of the leaves, replaced the fan with a little 6” fan on low (plants are barely flickering in movement), and reduced my watering to let the soil get closer to 25% moisture by weight and looked for new leaf growth.
From looking at the new leaf growth, I still seem to have a few problems I am hoping to get resolved.
1) Wavy leaves
2) Splotchy light-green to yellowish streaks in the leaves of Purple Kush
3) Curled up leaf edges in some areas of some leaves.
4) Since their last feeding, one of the plants has leaves that are turning a lighter green gradually from the mid-section of the leaf and becoming lighter as you look toward the stem (difficult to photgraph).
The Splotchy light-green patches are on two Purple Kush Auto’s. The pictured Purple Kush actually fell over in the grow medium (not sure how it happened) and have it splinted up straight and seems to be still growing.
After studying the well-known color pH/Nutrient chart from 420magazine.com that shows pH for hydroponics and soil side-by-side, makes me think my seedling pH should have been closer to 6.5 than my actual 6.0 to 6.2 since the seed starter grow medium used seems to be closer to soil, true? Could my low pH have locked out my nutrients? I think that 6.0 to 6.2 pH is still correct for my 5 gallon pot grow medium, true?
When should I adjust my light to get 40,000 lux on the veg plants (right now it is at about 20,000 to 25,000 lux for seedlings 15 days from planting)?
Also, one other newbie mistake is that I have my Purple Kush Auto’s growing along-side my photoperiod plants. My thought is just to let it go with the photo period lighting schedule and see what I get.
Any help or suggestions on how to correct these problems are greatly appreciated.
My first problems from a week ago were thought to be combination of wind burn, too much light, and over-watering (some small amounts of algae formed on surface of the grow medium). So, I moved the light up from 16” to 24” to the tops of the leaves, replaced the fan with a little 6” fan on low (plants are barely flickering in movement), and reduced my watering to let the soil get closer to 25% moisture by weight and looked for new leaf growth.
From looking at the new leaf growth, I still seem to have a few problems I am hoping to get resolved.
1) Wavy leaves
2) Splotchy light-green to yellowish streaks in the leaves of Purple Kush
3) Curled up leaf edges in some areas of some leaves.
4) Since their last feeding, one of the plants has leaves that are turning a lighter green gradually from the mid-section of the leaf and becoming lighter as you look toward the stem (difficult to photgraph).
The Splotchy light-green patches are on two Purple Kush Auto’s. The pictured Purple Kush actually fell over in the grow medium (not sure how it happened) and have it splinted up straight and seems to be still growing.
After studying the well-known color pH/Nutrient chart from 420magazine.com that shows pH for hydroponics and soil side-by-side, makes me think my seedling pH should have been closer to 6.5 than my actual 6.0 to 6.2 since the seed starter grow medium used seems to be closer to soil, true? Could my low pH have locked out my nutrients? I think that 6.0 to 6.2 pH is still correct for my 5 gallon pot grow medium, true?
When should I adjust my light to get 40,000 lux on the veg plants (right now it is at about 20,000 to 25,000 lux for seedlings 15 days from planting)?
Also, one other newbie mistake is that I have my Purple Kush Auto’s growing along-side my photoperiod plants. My thought is just to let it go with the photo period lighting schedule and see what I get.
Any help or suggestions on how to correct these problems are greatly appreciated.
Thanks for the help!
