New with a couple of problems

Hi, I just started budding my first crop and I have a couple of problems I think. The first one is that I am getting some dark spots in my leaves, they aren't too apparent until you hold them up to the light, these leaves turn in and start to die soon after that. I also have some small gnats, which I think might be living in the rock wool cubes. Any advice on how to cure these problems, and any tips in general?? Thank you!

I assume you're growing hydroponically? What nutrients are you using if any and how much? The dark spots seem to me like a Phosphorus deficiency especially if you're fresh into the flowing cycle.

For the gnat problem you have, I've used Dr. Doom in the past and it gets rid of spidermites, gnats, etc. I used it on my vegetables as well as my pot so it's safe and will definately relieve your problem and you can find it at most garden or hydroponics stores.

Let me know how it works out for you, Happy Growing

yo wats good im a first time grower n i have a white widow plant in 7 1/2 weeks of flowering n some of the tops leaves r turning a dark purpley color n i dnt know wat it is so any advise would be good right about now cuz i dnt know wat it is