Thanks for replying. I've just raised lights a bit. I should of said my lights actually running at 400w not 600w I bought a dimmable digital ballast to reduce heat.
My Temps where high when I started about 29-30c which I have now got down a bit. My lights about 8 inch away and I can actually touch the light without burning my hand. There is also signs off that on the blue cheese leaf edges but not the discolouration
Hi guys I'm looking for some advice as to what's wrong with my 3 week old jack herrer auto. This is my first time growing in soil so not sure what I've done wrong. I'm growing in a smallish 0.8x0.8x1.6m tent with 600 hps light in a cool tube with Temps at 25c lights on and 18c lights off. I also...