strange yellow marks on my plants? what is going on ?

Hello in the last 2 days something weird is going on to my WhiteWidow and BlueBerie , its began with the white widow with little yellow points on some leaves now its spread over my plant and today my blue began to make yellow "things"...

its because the nuts ? maybe disease , for sure my soil is 6.5 PH , and im using BIoBizz products with 400W HPF, as well i've upload some pics to demonstrate.

Thanks to all of you , without you no canabis for me

Is it just the lower leaves? Mine get like that too on the lower leaves sometimes because of watering with nutes and a few drops get on the lower leaves when i feed them.

yes im think that happend to me little bit water with the nutes ...

but why its happend ? my nuts are not good enough for the leaves its organic should be good.

Just too high of a salt concentrate for foliar feeding i guess. Some people remove the lower leaves.