A few of my leaves look like the picture with almost purple spots on the leaves. Is this a fungus or some type of deficiency?
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Post some plant pics Growmie, could be some pheno expression…color coming out 
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^^^^^^^^ this
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Could be a little pheno expression or sun burn from your led which is common and nothing to worry about. I would be more concerned with those water spots all over your leaves. Shouldn’t be spraying during flower 
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Hey @Bunger64 looks like a bit more information is needed for analyzing your situation.
COPY/PASTE the below list into your forum post.
Answer these simple questions the best you can.
If you do not know, or do not use something; Just say so; Or post
NA (non applicable)
-What strain, Seed bank, or bag seed (photo or auto)
-Age of plant
-Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF
-Vessels: Type and capacity of container (fabric, plastic, etc)
-PH and TDS of Water, Solution, runoff (if Applicable)
-PPM/TDS or EC of nutrient solution if applicable
-Method used to measure PH and TDS
-Indoor or Outdoor if indoor, size of grow space
-Light system List brand and wattage/spectrum
-Actual wattage draw of lights
-Current Light Schedule
-Temps; Day, Night
-Humidity; Day, Night
-Ventilation system; Yes, No, Size
-AC, Humidifier, De-humidifier,
-Co2; Yes, No
If growing Hydro some additional questions:
-DWC? RDWC? Autopots? Ebb and Flow? Other?
-Distance of liquid below net pot (DWC)
-Temperature of reservoir
-TDS of nutrient solution
-Amount of air to solution
Always try to upload a clear picture in white light of any issues you may have including full plant and close up of areas of concern to allow the community to assist you.
You can have nutrient deficiencies not because of lack of feeding but; over feeding, pH imbalance or phase of plant growth and strain being grown.
There’s a plethora of reason that can cause leave issues.
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Are the leaves still green where shadow hits your leaves and only turning purple where light is hitting them for the most part?
Not a fungus. Could be a deficiency. Could be nothing. More info definitely needed. 
Funny how things get all twisted around the direction gets lost.
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I do this at work. I get to the customer, and things are a shambles… Nobody knows or remembers anything! I have to go by the chalk outline of the body (figuratively)…
But just because I know all the circumstances, there is always that ‘fudge factor’ innate to all living and non-living things that borders on voodoo, and I never have an answer to the “why?”…
Summary: I feel ya…
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