@Joeeee_j Fill out the following support ticket. People will help once they see what you have.
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
- Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF
- Vessels: Pots, Grow beds, Buckets, Troths
- PH of Water, Solution, runoff (if Applicable)
- PPM/TDS or EC of nutrient solution if applicable
- Indoor or Outdoor
- Light system
- Temps; Day, Night
- Humidity; Day, Night
- Ventilation system; Yes, No, Size
- AC, Humidifier, De-humidifier,
- Co2; Yes, No
Always try to upload a clear picture of any issues you may have to allow the community to assist you.
Add anything else you feel would help us give you a most informed answer should be included. Feel free to elaborate, but short and to the point questions and facts will help us help you in a more efficient manner 
Can do better once we have a filled out support ticket, but my initial impression just based on the pic is that she is overfed and is showing signs of nitrogen toxicity (as evidenced by burned tips and dark, waxy leaves.)
I agree looks like nute burn.
What are your ppm’s?
Those other spots… could you have got water on the leaves?
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What strain, Seed bank, or bag seed
Different strains ones a SSA ones a NLA both crop kings seeds waiting on my ilgm seeds -
Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF
Organic (coco loco, happy frog) soil -
Vessels: Pots, Grow beds, Buckets, Troths
3 gallon pots most started in 3 gallon some I have started in 1 gallon cloth pots -
PH of Water, Solution, runoff (if Applicable)
Watering at 6.2-6.6 giving the bigger plants slight run off -
PPM/TDS or EC of nutrient solution if applicable
Ppm 400 of nute solution only at half dose of the micro/grow/cal-mag/terpinator -
Indoor or Outdoor
Indoor/garage but I do have insulation under tent and floor temp is good -
Light system
4x8 tent 2 Tm Lapy cobs 1000w each and a maxisun 1000w in between the two lapys -
Temps; Day, Night
Temp is kept right at 23-25 Celsius both day and night -
Humidity; Day, Night
Humidity is around 40% getting a better humidifier because my controller doesn’t kick this one back on because it’s electric I need a nob humidifier for my controller -
Ventilation system; Yes, No, Size
Yes, 6inch in-line fan it only gets 265 cfm I went with a cheap one I can upgrade to vivosun 6inch if I should. The 6 inch is hooked up to the carbon filter and blowing air out of tent. -
AC, Humidifier, De-humidifier,
No ac because it’s winter in a garage using a small tower heater lasko, humidifier getting a new one today -
Co2; Yes, No
No Co2 been seriously considering adding a bag of the co2 is it a major issue?
Yes I could have gotten water on the leaves as I was using a sprayer and sometimes I would get splash on leaves ive stopped using it and use a cup now. Ppm 450-500 for the bigger plants the ones that are 2-3 weeks get 450-500 135 for the small ones that I have only 2 weeks old right now
@Joeeee_j if it was me I would lower my ppm.
How close are your lights?
She’s just overfed. Back off the nutes and just feed water for the next week or 2.
Supplemental CO2 is a waste of money for the average grower. It’s takes a ton of light for the plant to even use the extra CO2. Higher temps and more nutes too.