HELP! My girls is dying!!

[genghishan]

Helle there

ı have 6 plant. I am in the 6week flowering . Soil 3/1 coco ,3/2 terra pro. I give a flush last 2 weeks because ı though this problem is nutrients burn but 1 cheese photoperiod plant is die. And other plants go to her Way(dying). Help me how ı can cure this?

[oldjarhead100]

flush more and check run off ph and ppm flush until ph 6.5 and ppm under 1000 then they should recover

[genghishan]

Thanks for answer . I keep 6.5~6,80 ph my water. And last ppm result 280 average. What can ı do another ? Because ı dont think nutrients burn anymore. I forget important things ı have thrips. I use yellow sticky and total explosion for fight but they just proliferate.