Basically, i'm about 4/5 weeks into things and everything looked fine and healthy, my plants are about 12"s tall in soil and were green all the way through. I hadn't checked my ph until the feed before last and wondered if it was worth doing so as everything seemed fine. I asked in a thread on here if I could carry on without checking and was advised that ph was the most important thing and that i should buy a tester! I did so and found that my ph was measuring about 8.5, I adjusted it on my following feed to 6.5 and when i checked on them later that day I noticed that the lower canopy was going droopy and yellow, and tonight they seem to be getting worse!! Does anybody know what this may mean?? As everything was going fine until i adjusted the ph 
