Help .. My leaves are Shriveling!

Hi, I have had my plants on a 12/12 cycle under an LED light now for a couple of days. Since this, Himalayan gold strain which was located directly under the light, some of the leaves have started shriveling up a little bit and curling. These are the larger top leaves. Also, the top set of the leaves have started to become a little yellow in the middle. Whats happening? Is it too hot? Do I need a fan? Too much fertilizer? The list is endless. Please help.

do you have a fan if no then yes whats your temps

Too much heat. Heck yes you need fans! Note the plural. Forget fertilizers until simple matters are handled. Pull the light back and water only if it is dry.

hotrodharley said:

Too much heat. Heck yes you need fans! Note the plural. Forget fertilizers until simple matters are handled. Pull the light back and water only if it is dry.

Click to expand...

the best advice a newbie can get

hotrodharley said:

Too much heat. Heck yes you need fans! Note the plural. Forget fertilizers until simple matters are handled. Pull the light back and water only if it is dry.

Click to expand...

Listen to this man. Search for his posts, read them, and take notes.

I shall go and get one of those 6 inch fans first thing in the morning and see if it helps. Do I have the blowing on the plants or just all around the tent. Also, all of the vents on my tent are closed. Shall I open one up a little for new air? I'm just scared about the light leeking in. One plant isn't a feminised plant but is a clone of a female but I don't want it turning male.

How often should I be watering? I haven't watered in 3 days and the coco still feels a little damp when sticking my finger in. I also have a little LED tool that is meant to flash when it needs watering, this has never flashed! lol.

Help is really appreciated guys, thank you so much.