Its been over a week now and I’m still getting brown spots on the leafs. Even the newer growth. I upped my mutes a bit, used epsom salt, and gave them a good drink. Don’t know what else to do.
Whats the ppm your feeding them at and how many milliliters per gallon cal mag or Epsom salt?
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It’s an organic grow.
I’m doing 1 tablespoon epsom per 1 gallon of water, using Dr. Earth, molasses, and Alaska Bloom.
Two things I notice that leads me towards light issue.
One, the top most leaves standing up.
Two, the top most leaves yellow.
Either too hot or too close or both.
What’s the avg. canopy temp?
Maybe back off on the light height and or temp.
Good luck! 
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I agree. I always recommend starting with environment.
Before adding anything I recommend taking room and leaf temp, and a humidity reading, and plugging it into a VPD calculator to understand where you are as far a transpiration is concerned. A low VPD correlates to high relative humidity which can result in disease and mineral deficiencies.
If your leaf temp is higher that your room temp your lights are too low. If your leaf temp exceeds ~80* your room is too warm. Cool it by raising lights, moving air, or air conditioning, or a combo of these.
Ensure your lights are set to proper DLI because a high rate of photosynthesis can increase nutrient use depleting the soil eventually causing a deficiency.
Also LED lights offer a smaller spectrum of light. Certain wavelengths the plant requires to generate calcium are absent. So keep an eye on calcium deficiency when growing with LED.
Then pH test a soil sample. Hanna has a great tutorial. If it’s 6.5 +/- .3 you should be good. Correct the pH if not.
Another consideration is water source. Does it contain chlorine or chloramine or any other contaminates? What is the pH?
Then look at your nutrients to ensure you are providing 3 primary, 3 secondary, and 7 trace minerals in your nutrition of choice. Dr Earth should not be lacking anything if using their feeding schedule once you bring photosynthesis and transpiration under control though some additional Ca might be required due to the LED lights.
Once you have the environment under control I think some Ca will help.
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I see you have quite the issue with fungus gnats! You should look into a product called Mosquito Bits and apply it to your soil if you haven’t already. It’ll kill the larvae.
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My light is about 14” above the canopy. Viparspectra p1500. I will try raising it a few more inches. Thanks for the info. Hopefully I can get them back in shape quick. I’m figuring 4 or 5 more weeks till harvest.
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Ref:
Univ of Miss reasearch study published in 2008: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3550641/pdf/12298_2008_Article_27.pdf
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Ok give them a big organic pk boost ,go get ur self five bananas take the skins off get one cucumber peel all the skin off now cut up all the skins the banana and cucumber skins put those into a mesh bag fill a 20ltr bucket with water add air pump and now add the bag with the skins bubble it for 24-48 hours when its done add 10mls of fish shit and water u dont have to water it down either
Nailed it and great advice. I noticed a few deficiency other than the lighting height mentioned 
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