I'm using ebb & flow,25 white widow 5 shiva shunk,temp 75f,humidity 50%,water temp,75f,ph 5.5,using flora nova bloom 350 ppms,im using three 600 watt hps plants 2'ft 9 days into flowering....Some plants are yellow,pale green,some look cool,but some are fading,in the last picture,the leaf is greenish-yellow,stem and margins,are burgurdy....sorry about the picture quality,can someone help me,don't wanna lose crop....sorry for the long post. thanks alot 1luv

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looks like heat stress, take the lamps up a bit further away an see how they do

I agree with pepsi! Heat stress. Put the top of your hand at the height you want your plants to be and see if it gets too hot for you! If you can take the heat so can your plants. My 600hps with glass and air cooling is about 8-10" away from the tops of the plants. Your ppms are very low too. The FAQs recomend around 800-900ppm for early flower and 900-1100 for late flower. My tap water registers 300ppm before I add nutes! Good Luck with you grow!

thanx alot peoples 1luv