It was my first idea ,i checked the plant with a microscope and a light...nothing.Generally look for mites first. They are real tiny.
6.3Whats your ph? How much do you water? What nutes do you run? ppm?
75 Fº and 45 of Humidity...250w hps for veg / 400w hps for flowering.Any experts out there? What is your temp and humidity? What type of lights are you using? Should you bring your ph up to 6.5? I stole from another post on this great site.
Soil
Calcium gets locked out of soil growing at ph levels of 2.0- 6.4
Calcium is absorbed best in soil at a ph level of 6.5-9.1 (Wouldn’t recommend having a ph of over 7.0 in soil) anything out of the ranges listed will contribute to a
Calcium Deficiency.
Thank you manLooks fine to me actually, if you look hard enough you can speckles and spots on about any plant, from tomatoes to oak trees.