Hi this is a Master Kush under a 600w MH with 3 other plants. About 1 month into veg. I noticed this curling and coloring on a few leaves of this plant only. Using cyco notes and PH to 6.1-6.3. The only thing is I ran out of room in my room so had to move into basement so it's like a constant...
Looks strange. I would get bottle caps or something to put under the posts to lift up just a bit to allow air to flow. Moisture under pots are prime for bugs and mold and other bad things. Get pots at least an inch off the ground.
Here is with the HPS off. The ones in this room seem bumpy between the veins. The room is kept at 75-77 all 18 hours and 55% humidity. I wait till about bone dry to feed with cyco. They don't look like the ones in other room. Perky and flat fan leaves
OG kush about 5 weeks in veg. Cyco nutrients in Pro mix. I let pot pretty much dry out before feeding. Room temp is 75 day and 65 night. 3 plants in that room all show same thing
I suppose there would be no harm putting a few plants into soil and trying it out. But it seems if it's being advised to beginners that is not the best method..
I'm not growing hydroponic. I put the water and nutrient mixture at 6-6.5 to feed. The solution to calibrate the pH pen is a powder I mix with water for 6.86ph
I am growing in ProMix BX. I also thought PH but like I said I did buy a meter from eBay and calibrate with a powder mix 6.86ph. I check the meter in a 7.0 calibration solution but am not 100% and dont want to spend $100 on a new meter