Fuck buddy you should be on all the LED threads since they're all looking for stealth grows and have already proven to buy anything before seeing results...roflmao!
pics are small and hard to see, but based on just the pictures i would say overwatering or you need to feed them some micros, what are you feeding them now?
The last pic looks like over watering yet the second looks like nutrient burns. Sometimes it's a lot of guessing until a strain is well known through experiences.
over watering and cal-mag deficiency, flushing wont help much. let your medium dry out and water with 1/2 strength nutrient with calmag. it may take a week or so, but it will bounce right back.......
salt buildup on them? may be powder mildew........