Help a noob grow sour D

It's my second indoor grow and my sour D has shown weird discoloration. the growth is on par with what it should be and my room is usually 74 degrees the plants are under a 400w MH light. I am using regular PhD water and no nutes. it's only on my 1 of my 4 plants as well I appreciate all help

Use this guide to determine your problem. http://www.mjguide.com/tutorials/PlantTrouble/Merged.htm

How close do you have the light to the tops of the plants? And what kind of medium are you growing in? My guess is this is due to a nutrient deficiency since you aren't using anything. Unless you have a soil that is providing everything the plant needs.

dont ask for help with a single leaf or your going to get every diagnosis in the book. show the whole plant, its ok everyone is doing it.

Why did you pull a perfectly good fan leaf ?..

GreenBoxGrown said:

How close do you have the light to the tops of the plants? And what kind of medium are you growing in? My guess is this is due to a nutrient deficiency since you aren't using anything. Unless you have a soil that is providing everything the plant needs.

Click to expand...

always 20-18 inches away. I've actually been flushing the soul for the last 2 weeks cause it have 3/4 of My plants nitrogen toxicity and still darkened the shit out of my pennywise

Cpappa27 said:

dont ask for help with a single leaf or your going to get every diagnosis in the book. show the whole plant, its ok everyone is doing it.

Click to expand...

Sure thing. My dude came over yesterday and said it was broadmites possibly

That plant is exhibiting N deficiency. Yes, it can be the only one of four.

Jimmy Sparkle said:

That plant is exhibiting N deficiency. Yes, it can be the only one of four.

Click to expand...

I'm not to sure about that but I pushed some roots organics thru just in case. thanks mate

iFuckinSuckatGrowing said:

Sure thing. My dude came over yesterday and said it was broadmites possibly

Click to expand...

Thats not broad mites. The new growth is affected by broad mites. That looks fine. The affected leaf looks like its tacoing. How far is the light away from it?

If its not getting cooked by too much light id say magnesium deficiancy. I cant see it being nitrogen since the rest of the plant is so green and nitrogens mobility.

SPLFreak808 said:

If its not getting cooked by too much light id say magnesium deficiancy. I cant see it being nitrogen since the rest of the plant is so green and nitrogens mobility.

Click to expand...

Ok dude I kinda figured about the nitrogen especially cause they all just came off an overdose. does Epsom salt have magnesium

iFuckinSuckatGrowing said:

Ok dude I kinda figured about the nitrogen especially cause they all just came off an overdose. does Epsom salt have magnesium

Click to expand...

Epsom salt is magnesium. Magnesium deficiancy is probably the most common deficiency. If youre feeding at all its probably not nitrogen, especially if youre using potting soil and not a soiless.

Overdose? When did you talk about that? I must have read somthing wrong. If you previously cooked them with N I would never have suggested that...... lol

Oh it was later, later on in the post
Cause the first post said no nutes....???? Dude, your stoned lol

What nitrogen, if its loads chances are its still that if your in soil?

Did you foliar feed it?