tinman-that sucks man...hate it for you...have you had any changes in temps/rh/water? Perhaps they need a nice flush and then back to the nutrient regiment? How close is the light from the canopy? Have you ever had this happen before? Are you sure you don't have a bug issue? Can you hang some strips in the room? I'm currently having some type of bug infestation with my peppers. It sucks...my peps have been growing nice and strong and producing tons of chilies for me since May and I had to cull one of them a few days ago....sprayed some insecticidal soap and this evening my number 3 & 4 peppers have those little bastards on them. I'm no expert at all, but I don't think ph at 6.5 will cause little white spots and necrosis to occur.
hiya dub! i have had some temp changes and i could probably could use a flush. seems i did that once before when ph was too high at almost 8 and it did them good. i cant find one little critter anywhere! what kind of strips are you refering to? i think ill put them up just in case. stiches thread for ph trob. and such seemed to have a pic similar to my prob. and indicated maybe the begining of ph troubles befor lockout of phosforus. the curling crispy ends concern me as well. choch suggests powdery midew. whats the fix for that?