Need Help!

[Unknown123]

Recently i found Grey stuff on my rockwool. When i wiped it with my finger it was like if it was dust im assuming its mold...See pics below. So then my leaves are starting to get these yellow spots and starting to look weird on some. Can someone tell me how i can make my plant better again? I washed out some of mold or w.e. it is but now it seems to be coming back. It was a lot worse before i washed it. Im using the drip system btw with one of those containers as a reservoir.

 

[blancolighter]

Don't know much about drip systems, but I do know if you have mold, things are too wet... Might wanna look at slowing down your drip...

You leaf problems though looks like classic heat stress, your lights are prolly a bit too close (I'm assuming your growroom temps aren't too high because you're developing mold, but hey, I could be wrong)

 

[Unknown123]

I feed the plant three times a day for 25 min. Do you think i should reduce it to two times a day? Im also using sun blaze 44 fluorescent lights 4lamps 4ft they are about 10inches away from the plant. The temperature is around 75-80 degrees and the humidity is between 20%-30% So i don't know what is causing it to mold. I think maybe the netting pot was inside the reservoir too much. Probably the inside of the reservoir got too humid? I also have a fan that has low med high setting and i have a small pc fan blowing at all times even when the lights shut off. I am also feeding it iguana grow nutes. I have been growing this plant(purple strain) for about 3 1/2 months and it is only 10inches tall. I dont know if that is normal.

 

[POTUS]

You haven't told us enough information about your grow for anyone to give you anything but a wild guess at what is happening with your plants.

Please go to this thread and tell us everything about your grow. Also, pics of the entire setup with the plants all in it, and a "under the hood" pic of your rooting area showing the bottoms of your plants where they are would help.

My first thought on the little you've told us is that for 3.5 month old plants, that's not much of a root system. I need to see a pic of your plants in their normal place in the drip unit.

Also, tell me what ratio of mix you're using to feed them.

Here's the link