@Tinytuttle I guess my pH meter is fine. I use calibration solution every week and calibrate it from the back with screwdriver 
Last time I used just coco with trichoderma. This time I am using coco with cork and it has some nutes in already for start. The salts are ok. When I water with nutes. The same amount of nutes comes out so that should be fine…(a bit higher)
My last grow btw: First profi Coco grow 60x60 tent 250w HPS
@legalcanada the leaves are wet form clean water. I spray them every day. I am sure a dont have any bugs or whatsoever…I check everyday…
@Growinnblowin I check and write RH and temp every day. Last three weeks: I check it every day between 8am-10am. I always write down lowest/highest/current. ¨
For last three weeks its been: Lowest 45-50% average, highest 84% average and current about 55% average. The temps are: 19C lowest every day, 26-27C max, 25-26 average
The light starts at 7am and goes of at 12pm. The intake fan is on for all 17h with light. At night no fans are runing. Only inside fan runs 3times (every two hours) a night to “scrub” the air.
I water every 2-3 days. They are in smart pots so they dry prety quickly. They are 1inch (3cm) dry when getting water.
Last four days the humidity is always at 45 when I check it at 8am 
thats bad I
immediately fill up the humidifier and it goes back to 65 average…