Old post I know but here is for, just incase. Ive had them(yellow spots on leaves) but they seem to stay isolated to like one branch or two on mine anyway. I got tired of looking at them and tripping on it so I cut that branch off. the growth was slow too on them but the rest of the plant did fine. dont know what it was. Ive found that sometimes my plants go through a minor problem and actually work itself out. If your doing everything right they will be fine. I use ff soil and the trio and nirvana thats it. I follow the ff sceduall. Be sure to always add about an inch if peral light at the bottom of you hole or pot so that the dranage is realy good, not just good. I aiso use lime 1 tblsp per gallon of soil. but be sure to wet it realy good after mixing it and stir it in. then let it sit for a day. do it again,then use.Also, listen man, your doing GREAT. Try not to worry too much and by the looks of them your going to do very well on yield. Pound or not, youll be suprised how much you'll get. Full sun! good soil and nutes. Your right on track. Just be sure you get them lots of water, they will neet it in full sun. let them dry up good but water several gallons on each one of them. 2 or three at least. hopefully your good on drainage.
