Please help droopy plants yellow leafs

Redeyegee

New Member
Really need help. I have tried everything in my knowledge and I still can't get down the bottom of the problems. The plants are giving me all sorts of signs but I still can't figure them out. I've had droopy plants wiltering plants yellow leafs light green leafs dark green leafs. Light green and dark tips. Look like their under waterd. Them overwaterd. Look like their dying. I'm in nft. Please help... I am running 2 600w 2 400w lights
2 nft systems same reservoir 2 separate feeding pumps. Ec 1.4 ph 5.8 after a day or to the ecs jump up to 1.6 and ph goes up to around 6.1 I can't understand..
 

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