Leaves spotting and turning puple

[b10narybud]

Hello,
I'm either growing lifesaver or hashberry.

I"m using Fox Farm Ocean Forest.

Anyhow, sorry, keepin it short...i'm heading to work. I took some picutures of the leaves. They are rapidly turning purple. Big change just overnight.

Help me figure out what this is..its really starting to bother me...is it too much or something or a defficiency?

sorry..its a photobucket image....ICMAG REFUSES to load images..keep giving me errors...

 

[MynameStitch]

I checked the picture; but need moreinformation about your grow; when you get back from work you need to fill out this information so we can better help you out.

From the pic it looks like nitrogen and possible phosphorus issues.
Another thing please do not upload to photobucket or any other public viewing photo site that is non mj related.
You risk your self getting busted this way.

ANyways please fill out this information.

SOIL:
What STRAIN are you growing?
What was the establishing technique? (seed or clone?)
What is the age of your plants?
What PHASE (seedling, vegetative or flower) are the plants in?
What Technique are you using? (SOG, SCROG etc)
What size pots are you using? (Include how many subjects to pot)
What substrate/medium are you using? (percentage of perlite, vermiculite...etc?)
What Nutrient's are you using?How much of each? *Knowing the brand is very helpful*
What is the TDS/EC/PPM of your nutrients used?
What is the pH of the "RUN-OFF"?
What method of pH test was administered?
When was your last water?
When was your last feeding and how often are you feeding?
What size bulb are you using?
What is the distance to the canopy?
What is your RH Factor? (Relative Humidity)
What is the canopy temperature?
What is the Day/Night Temp? (Include fluctuation range)
What is the current Air Flow? (cfm etc.)
Is the fan blowing directly at plants?
Is the grow substrate constantly wet or moist?
Is your water HARD or SOFT?
Has plant been recently pruned, cloned or pinched?
Have any pest chemicals been used? If so what and when?
Are plant's infected with pest's?

 

[green dreamer]

suffering the same, albeit at less advanced stage. have done before. high temps and poor airflow are the constant factors regarding my situation. i know it's not the answer but it might point you to a solution

 

[b10narybud]

What STRAIN are you growing? Lifesaver or Hashberry...got them mixed up.
What was the establishing technique? (seed or clone?)Seed
What is the age of your plants?1.5 months
What PHASE (seedling, vegetative or flower) are the plants in? VEG
What Technique are you using? (SOG, SCROG etc) LST
What size pots are you using? (Include how many subjects to pot) Computer Case
What substrate/medium are you using? (percentage of perlite, vermiculite...etc?) Fox Farm Ocean Forest
What Nutrient's are you using?How much of each? *Knowing the brand is very helpful* MG 15-30-15 fert...(sorry!!)
What is the TDS/EC/PPM of your nutrients used?
What is the pH of the "RUN-OFF"? 6.5
What method of pH test was administered? soil
When was your last water? day ago
When was your last feeding and how often are you feeding? Fed 2x with 1/2 dose
What size bulb are you using? 131 Watts of CFL
What is the distance to the canopy? 3-7"
What is your RH Factor? (Relative Humidity) 50% avg
What is the canopy temperature? 78
What is the Day/Night Temp? (Include fluctuation range) Not Sure
What is the current Air Flow? (cfm etc.) 80cfm (then the restrictions )
Is the fan blowing directly at plants? No
Is the grow substrate constantly wet or moist? no
Is your water HARD or SOFT? distilled
Has plant been recently pruned, cloned or pinched? Topped
Have any pest chemicals been used? If so what and when? NONE
Are plant's infected with pest's? NO

The bottom leaves are rapidly getting whiter......

 

[MynameStitch]

How often are you feeding them?

Your plants are in a computer case?

Your food you are using has no magnesium in them it's got zinc, iron manganese.
So you will need to supplement with magnesium; you can use dolomite lime in your mixture next time if you want to continue using your MG product.

Just do not listen to the back of the box; I would use 1/2 teaspoon per gallon of water.

I used to use that myself was very careful how much I used.
To fix the problem now you can use epsom salts 1 tsp per gallon with your mg mixture.

You have access to a hydro shop?

 

[b10narybud]

Yes..in a PC case.

Your saying thi is a magnesium deficiency and dolomite lime will correct this? correct?

What are the epsom salts for again?

No access to a hydro shop

 

[Core]

...http://www.icmag.com/ic/showthread.php?t=74052

 

[MynameStitch]

Dude I thought I helped him out but could not remember, I got his pics mixed up with this dudes pics/post.......

http://www.icmag.com/ic/showthread.php?t=74126

Dude I am pissed; cause I took the time helping you out in your other thread; I told you what was wrong with your plants, from your pic it's a nitrogen issue.