Rdwc. Hydroyton and rock wool. Res temps 65-70. Air temp 75f. 2.5 week old ww seedlings. GH flora. 1:2 micro:bloom at 300 ppm. Started in dwc red with 100 ppm GH flora grow to help stabilize pH of distilled water. Has issue with brown slime on roots. 1.8mL of clorox cleared that up quick. Currently using 1mL of bleach for my 15 gal of nuts solution every 3 days. 200 w mh about 3ft from plant tops. here's my problem:, last week I noticed the larger leaves starting to droop a bit. I saw the light may have been too close so I moved it up to 3 feet above the tops. Four days later the lower leaves that were drooping are now yellow.one of the plants has black spots on the yellow leaves. The leaves aren't chrispy, just yellow, completely yellow. The new growth looks good except one of the plants has basically stopped growing all together. My PH is good 5.5 to 5.9.at this point I don't know what the issue is. I've attached some pictures for you guys to take a look at. Any help would be greatly appreciated. Thanks
I am no help , never done your setup .. You should try in the Sick plants Section or the Hydro section Good luck and have fun with it