Platinum LED 450 watt light.
Ocean fox soil
5g fabric pot.
Ph tap water 6.0-7.0
Unsure into how far along for flowering. I think around week 4.
Not a lot of nutrients used.
I don’t know what’s wrong with them never had this issue before.
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can you post a couple natural light pics of the plant? do you know what the runoff Ph is?
Because you say “not a lot of nutrients” I’m guessing you’re not supplementing with a calcium/magnesium supplement?
That was my first thought when I saw it, also keep your pH at 6.5 for best results
- good luck
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By not a lot of nutrients. I have fox farm grow big and big bloom as well as tiger bloom but I haven’t used them a lot only twice throughout the grow
Okay so what I think you got going on is a magnesium deficiency, but because you’re withholding nutrients it could be that and/or other minerals, you plants need stronger nutes for starters, because it’s showing a deficiency
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Welcome to ILGM @Darksheex,
Your issue is:
Potassium
Potassium (K) Mobile Element and Macro Element
Potassium plays a big role as well. Having good amounts of potassium in your plants helps in having sturdy and thick stems, disease-resistance, water respiration, as well aids in photosynthesis. Potassium is also found in the whole plant. It is necessary for all activities having to do with water transportation. Potassium is necessary for all stages of growth, especially important in the development of Buds.
Having to little of Potassium in your plants causes the plants leaves to show retarded growth and show a scorched tip and edges around the leaves. Plants may stretch and your branches can be easily broken or weak. Don’t get this deficiency confused with iron, because it almost acts like iron but to tell the difference in the two is: for potassium the tips of the leaves curl and the edges burn and die. Older leaves may show a red color and leaves could curl upwards. Dead patches (Necrosis) can happen on the margins of larger fan leaves thus, the leaves will eventually die off and turn brown. The Older leaves will show different patches of color (mottle) and turn yellow between the veins, following by whole leaves that turn dark yellow and die. The plants overall growth slows down, mostly when they are in vegetative stage. To little amount of potassium also slows the growth of buds during flowering stages. Dark edges will appear around the edges of the leaf when the deficiency is starting to happen. When your Relative humidity is low, you can almost bet your going to soon get a potassium deficiency from your plants perspiration.
Potassium can get poorly absorbed when having too much Calcium or ammonium nitrogen, and maybe cold weather. Having to much sodium (Na) causes potassium to be displaced. SO keep those in mind… Parts affected by a Potassium Deficiency are: older leaves and leaf margins.
When you have too much Potassium in your soil, it can lead to big troubles, like salt damage and acid fixation of the root system, as well as too much potassium can cause a calcium deficiency. Your fan leaves will show like a light to a dark yellow to whitish color in between the veins. Due to a molecular imbalance, potassium toxicity can cause a reduced uptake and lead to the deficiencies of Mg, and in some cases, Ca. Also leads to the other nutrients to not be absorbed properly leading to lots of other deficiency such as: magnesium, manganese, zinc and iron and can cause problems with calcium as well.
Problems with Potassium being locked out by PH troubles
Soils with excessive Leeching and High ph soils and or water.Soils that are potassium fixated. An excess of kitchen salts (sodium) in the root system/enviroment.
Soil
Potassium gets locked out of soil growing at ph levels of 4.0-5.5
Potassium is absorbed best in soil at a ph level of 6.0-9.5. (Wouldn’t recommend having a ph of over 7.0 in soil) anything out of the ranges listed will contribute to a Potassium deficiency.
Solution to fixing a Potassium deficiency
Any Chemical/Organic nutrients that have potassium in them will fix a potassium deficiency. Again Peters All Purpose plant food 20-20-20, will cure the potassium deficiency , Miracle grow Tomato plant food, Miracle grow All purpose plant food.( Only mixing at ½ strength when using chemical nutrients, or it will cause nutrient burn!) Some other supplements of potassium are: Wood ashes, which are fast absorption, Kelp Meal, which is medium absorption, Greensand, which is slow absorption, granite dust, which is slow absorption. Sulfate of Potash, Sulfate of Potash Magnesia, Muriate of Potash, which are medium absorption. FOXFARM GROW BIG HYDROPONIC CONCENTRATE, which is fast absorption. (FFGB can bring your ph down as well) Earth Juice Meta-K, which is fast acting. (Can bring down your ph as well) Leaves will never recover, but the plant will show recovery after about 4 to 5 days when using a fast acting nutrient.
Will.
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Just wanted to say love you buddy @garrigan62 you always seem to dig up some great info… by the way how is your hand doing just thought I’d ask?
Thank you for your kind words @peachfuzz.
Believe it or not but my hand is still very sore but is doing better thank you for asking .
Will. 
Thank you all for the help. Leafs turned back to normal green color. Burned areas never made a recovery but it didn’t get worse.
I have gotten two small plants that I know zero about and need sooooo much help anyone?
Show us some pic’s
Will
How did your grow turn out?
Grow turned out really good. Attached are a few photos not fully done at that point but still look cool. Ended up with about 11oz total. Super skunk, blue berry auto and ak47 auto and white widow den. Would highly recommend any of them.
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Great job man… it looks like it turned out very well… much props… 
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Good to see everything worked out some nice ladies there 
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