are you sure? dont just look for black spots. they will be very small and almost appear like a clearish redish color. if you have bad eyes you wont even see them.I looked under all the leafs and I don't see any spider mites or any black spots moving.
my guess without pics would be a mag def. get yourself some cal mag and you should be ok. but it could also be a ph problem in your case. do you have a thread on this started somewhere? if not start one and i will give you a hand.Mrfootball I have same problem also 1 month from flower. Medium is sunshine # 4. I use earth juice bloom and catalyst for flowering. I use tap water that is left out over 24 hours to evaporate the chlorine. Its just a few little spots just like his.
you have a micro problem from using distilled water. you didnt notice it till now becuase the soil was providing the minerals. but now the plants have depleted the soil and the minerals need to be replinished. thats my first thought.Dj teereks you seem to be right on the money! Thanks to Mr Football, dirtysnowball and dj teereks, this was my first post on the site and I have to say, that the help has been great.
So I could conclude that is Mag Def. or Calcium or Ph burn , caused by overfeeding and lack of specific nutrients.
Thanks again.