most likely its the ph i am currently having the same problem.. used to do the finger test as well when i checked the ph of the water it was insanely high.. but a little vinegar fixed it right up
misterniceguy2 Reviewed by misterniceguy2 on . Sickling pix First time growing, trying to feel it out before getting into anything to serious. Bag seed couple regs and mids. (Plan on ventilation and better lighting for flowering if I can get that far.) Made the mistake of using clear/ undersized (9 oz) party cups because I had some on hand. Then discovered my distilled watered may cause deficiencies due to lack of minerals so I switched recently to filtered sink water left out at least 24 hrs. I don't have a good Ph tester (cheap 3 in 1 moisture Rating: 5