hello hello people,

I recently started my first ever grow. So far its gone pretty well, but i have been very naive and am learning a lot about my plants every day. Over the past 2-3 days my plants have started getting little dark yellow-brown patches on them and I'm having trouble figuring out the problem, as these symptoms seem to point to various problems.

I think it might be heat stress, as I am growing the plants in a cupboard which if I'm honest, is probably a bit small and may not get enough air circulation. Hoping to fix this 2moro with some new intake/outake fans. My plants are around 4 inches below a 200w CFL light. I've just ordered an electronic pH tester though as I have been using some tap water as well as distilled water throughout watering. I know I shouldn't have done this, I got lazy and am now paying the price.

My plants are around 3 weeks from seed, only started giving them nutrients recently, as in a few days before this problem occured, so I am also wondering if I have used too much. The food I have is Miracle Grow all purpose (soluble). Or maybe I just gave them too much water.

I've hopefully attached two pics below for your viewing pleasure. Not sure if you can tell by the pics, but some of the leaves are also curling up slightly, not very much, but they aren't flat. The stems look healthy and leaves seem a good colour in generally, however my plants are growing a lot slower than my flatmate's, who is growing in a larger cupboard closer to an open window. Any help would be awesome guys, sorry that my first post is begging
evilbeaver Reviewed by evilbeaver on . heat stress or nute problem? hello hello people, I recently started my first ever grow. So far its gone pretty well, but i have been very naive and am learning a lot about my plants every day. Over the past 2-3 days my plants have started getting little dark yellow-brown patches on them and I'm having trouble figuring out the problem, as these symptoms seem to point to various problems. I think it might be heat stress, as I am growing the plants in a cupboard which if I'm honest, is probably a bit small and may not Rating: 5