Please help fast!! Lowryder dwc yellowing and browning leaves

I have three lowryder 2 autoflower plants in a small dwc hydroponic setup with six 100w LEDs and one 60w led, they are around three and a half weeks old yesterday the very bottom sets of leaves on each plant started to turn yellow brown thought it might be nutrient burn so I brought the ppm down from 800 to 600 please help
 

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Pinworm

Well-Known Member
Are you sure? I don't mean to question your expertise but I've been pouring over pages of dwc threads and a lot of people say not to take them that hight till late into flower
Lol I'm no expert, but they don't look burned to me. It's up to you. Was just my two pesos.
 
Upped the nutes but at least for now it doesn't seem to be working but I'll give it time. Would moving it into a bigger container help at all?
 
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