I have some similar spots on mine… I’m trying to do some research so if I find out I’ll share the link with you… I’m a first timer so I wouldn’t dare say what I thought it was…
Ok thanks Anne plz let me know what you find out.
Very similar I’m thinking this is what’s wrong with mine and ours look similar… Good Luck
just a little hint but if you want a better answer I would need some details
Answer these simple questions the best you can.
If you do not know, or do not use something; Just say so = NA
Strain; Type, Bag seed, or NA
Soil in pots, Hydroponic, or Coco?
System type?
PH of runoff or solution in reservoir?
What is strength of nutrient mix? EC, or TDS
Indoor or Outdoor
Light system, size?
Temps; Day, Night
Humidity; Day, Night
Ventilation system; Yes, No, Size
AC, Humidifier, De-humidifier,
Co2; Yes, No
Add anything else you feel would help us give you a most informed answer. Feel free to elaborate, but short, to the point questions and facts will help us help you smile
Strain; Ilgm Strawberry Kush
Soil in pots, Hydroponic, or Coco? Soil a even mix of happy frog and ocean forest
System type? Don’t know what that means lol
PH of runoff or solution in reservoir? 6.4
What is strength of nutrient mix? No nutes yet only 12 days old
Indoor or Outdoor Indoor
Light system, size? Hps 400 watt
Temps; 77-81, 70-74
Humidity; 30-40, 30-40
Ventilation system; Yes, 2 exhaust one in one out 4 inch duct vents
AC, Humidifier, De-humidifier, central Air when needed
Co2; Yes, No
No
I think it was just a mistake on our part my husband used a gallon of run off water instead of the clean water but if you think it could be something else please share being a newbie stinks lol
lol hydro drip feed hand water etc. just for future referrence and for ph of run off? this would tell you lots since what you put in isn’t always what comes out it helps indicate what the soil’s ph is and is how you adjust what ph you water with. FF soil is soil less and tends to need no nutrients for first month or so your humidity seems a little low for veg 60-70% is my usual target when they are so young they are showing some signs of nute burn this is likely due to how fast they are drinking I would start by adjusting humidity also check tdds of water you are giving them
lol I was looking at Eriks pictures the upward curl of his leaves and burnt tips are pointing to nute burn and possible temp issues if you catch him first ask him his temps and humidity? If a plant is in perfect soil and drinks too fast it takes in nutrients too fast as well leading to nute burns
Anne I would still adjust your temps and humidity a bit too a 10 degree swing between night and day is healthy target with pinks and purples it helps bring out your colours 
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Haha ok got ya… The nutes will go right in the water as I hand water and will feed the same way… First grow ever so I’m using a pretty basic setup… Once I learn and have some grows under my belt and my card comes in then we will expand amount of grows lol I guess I was smart to start small as to not waste a ton of money while learning… Thanks again for all your input
This is quite large but you can copy and paste it in your files.
This is a pic of what I believe it is. I told @anne whaht her problem was anyway here is the pick. Yours isn’t this bad yet…just I n gaining of it
Phosphorus (P) Mobile Element and Macro Element
Benefit: Phosphorus does a lot of things for the plant. One of the most important parts of Phosphorus is: It aids in root growth and influences the vigor of the plant and is
one of the most important elements in flowering as well helps to germinate seedlings.
Phosphorus is an essential plant nutrient, and since it is needed in large amounts, it is classified as a macronutrient. Phosphorus is a MAJOR important nutrient in the plants reproductive stages. Without this element the plants will have a lot of problems blooming without proper levels of Phosphorus.
When your plants are deficient in phosphorus, this can overall reduce the size of your plants. Not enough causes slow growth and causes the plant to become weak, to little amount of Phosphorus causes slow growths in leaves that may or may not drop off. The edges all around the leaves or half of the leaves can be brownish and work its way inwards a bit causing the part of the leaves to curl up in the air a bit. Fan leaves will show dark greenish/purplish and yellowish tones along with a dullish blue color to them. Sometimes the stems can be red, along with red petioles that can happen when having a Phosphorus deficiency. This isn’t a sure sure sign of you having one though, but can be a sign. Some strains just show the red petioles and stems from its genes.
So pretty much the overall dark green color with a purple, red, or blue tint to the fan leaves is a good sign of a Phosphorus deficiency. Having Cold weather (below 50F/10C) can make phosphorous absorption very troublesome for plants.
Many people get a Phosphorus deficiency confused with a fungus problem because the ends of the leaves look like a fungus problem, But the damage occurs at the end of the leaves. side of the leaves and has a glass like feeling to it as if it had a ph problem. Parts affected by a phosphorus deficiency are: Older Leaves, Whole plant, Petioles.
Too much Phosphorus levels affect plant growth by suppressing the uptake of: Iron, potassium and Zinc, potentially causing deficiency symptoms of these nutrients to occur def in plants. A Zinc deficiency is most common under excessive phosphorus conditions,
As well as causing other nutrients to have absorption troubles like zinc and copper. Phosphorus fluctuates when concentrated and combined with calcium
Problems with Phosphorus being locked out by PH troubles
Cold wet soils, acid or very alkaline soils, compacted soil.
Soil
Phosphorus gets locked out of soil growing at ph levels of 4.0-5.5
Phosphorus is absorbed best in soil at a ph level of 6.0-7.5 (wouldn’t recommend having a ph of over 7.0 in soil) Anything out of the ranges listed will contribute to a Phosphorus deficiency.
Solution to fixing a Phosphorus deficiency
Some deficiency during flowering is normal, but too much shouldn’t be tolerated. Any chemical or organic fertilizers that have Phosphorus in them will fix a Phosphorus deficiency. If you have a phosphorus deficiency you should use any N-P-K ratio that is over 5.Again Peters all purpose 20-20-20 is a good mix. 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!) Other forms of phosphorus supplements are: Bone meal, which is gradual absorption, I suggest making it into a tea for faster use, where bone/blood meal is slow acting, but when made into a tea it works quicker! Fruit eating bat guano, which is fast absorption, Worm castings, which is gradual absorption, Fish meal, which is medium absorption, Soft Rock Phosphate, which is medium absorption, Jamaican or Indonesian Guano, which is fast absorption. Crabshell, which is slow absorption. Tiger Bloom , which is fast absorption.
Here is a list of things to help fix a Phosphrus Deficiency.
Chemical
Advanced nutrients Bloom (0-5-4)
Vita Bloom (0-7-5)
BC Bloom (1.1-4.4-7)
GH Flora Bloom (0-5-4)
GH Maxi Bloom (5-15-14)
GH Floranova Bloom (4-8-7)
Dyna-Gro Bloom (3-12-6)
Fox Farm Tiger Bloom (2-8-4)
Awsome Blossums
Organic
Dr. Hornby’s Iguana Juice Bloom (4-3-6)
Advanced Nutrients Mother Earth Bloom (.5-1.5-2)
Fox Farm Big Bloom (.01-.3-.7)
Earth Juice Bloom (0-3-1)
Pure Blend Bloom (2.5-2-5)
Pure Blend Pro Bloom (2.5-2-5)
Buddswell (0-7-0)
Sea Island Jamaican Bat Guano (1-10-0)
Indonesian Bat Guano (0-13-0)
Rainbow Mix Bloom (1-9-2)
Earth Juice Bloom (0-3-1)
BIO BLOOM (2-6-3.5)
AGE OLD BLOOM (5-10-5)
ALASKA MORBLOOM (0-10-10)
METANATURALS ORGANIC BLOOM (1-5-5)
Any of these will cure your phosphorus deficiency. Affected leaves will not show recovery but new growth will appear normal.
Now if you added to much chemical ferts and or organics,( which is hard to burn your plants when using organics) You need to Flush the soil with plain water. You need to use 2 times as much water as the size of the pot, for example: If you have a 5 gallon pot and need to flush it, you need to use 10 gallons of water to rinse out the soil good enough to get rid of excessive nutrients.
Note: Blood Meal, Dried Blood, Guanos, Kelp Meal, Cotton Seed Meal, Peat Moss,
Sulfur and fish meal are all acidic and can bring your ph down, so if you add these please monitor your ph when using those.
Note: Bone Meal, Rock Phosphate, Wood Ashes pretty much all ashes, Shellfish Compost and Crab Meal are all alkaline and can make your ph go up, so if you add any of these please monitor your ph.
Hope this helps
Will
200 watts CFL humanity 51 temp 85
temp is a little high which is kinda what i figured my Purple Kush responded quite similar when my temps were hitting mid to high 80’s they seem to do best in a more comfy 76-80 day 65-70 night it’s most obvious in flower. As I said earlier if temps are high your plant drinks more and in turn eats more which is giving your plants some nute burn though Will may be right it could be P def or ph related? only way to know is to check soil ph and run off