RT seems to have some good info on things but Ive got a link here that may help you out with watering needs if the situation may arise.
Healthy Choices Wellness Blog » Blog Archive » ph Levels in Bottled Water




Quote Originally Posted by greenthmb
That is what mine look like, but the brown spots are smaller and more circular... and the leaves have turned more yellow than yours. Now that I've tested the pH of the water I feed which is 6.6, and the run off, which is 5.0, I am really confused.. Something in the soil is massively lowering my pH..
BlankStairs Reviewed by BlankStairs on . Brown Spots & Yellowing of fan leaves @ 4 wks flower. Hello everyone! This is my second closet grow, and after a successful first grow I am stoked to harvest again. I have 6 plants in Fox Farm soil, under a 400w hps, light at 12/12, circulation fan, temp stays between 72-76 degrees, humidity stays around 40%, watered with Nestle Pure H20 (which is supposed to be a pH of 5.5), and they are fed Tiger Bloom, and Big Bloom Fox Farm nutes every other watering (once/wk). All of the plants are big, green and healthy except for one, Wild Purple, which Rating: 5