I planted some bag seeds to get some experience before i mess up seeds ive paid for anyway my leafes keep turning brownish it starts at the tips and works its way inward so my?Is what do i do before they die
Sounds like nutrient burn, or it could be a pH issue.
Have you downloaded and read the free book? https://my.leadpages.net/leadbox/122a50d73f72a2%3A14c3f3fe8b46dc/5697423099822080/
We could use more info. What are the parameters in your grow?
Let’s get you started with a support ticket, answer all the relevant questions the best you can and we might be able to get an idea of what is going on.
If you do not know, or do not use something, just say so or put ‘NA’.
ILGM Support Ticket:
What is the strain and type(strain name, unknown bag seed, regular seeds, feminized seeds, auto-flower, etc)?
Indoor or Outdoor? If outdoor, planted in ground or in a container?
Size of space (max height and area, length/width)?
Soil or Hydro? Type of Medium used? System type?
pH? Of the soil or medium (root zone/reservoir/runoff) and of the water and/or nutrient mix that is fed to the plant?
Type and strength of nutrients used? NPK? EC/TDS/PPM levels?
Temperature? Day vs. night temp or highest and lowest temps? Root zone temps?
Humidity %?
Light system/watts/lumens/FLUX/PAR?
Ventilation system? Size? CFM? CO2? AC, Humidifier, De-humidifier?
Number “weeks/days” from into Season, Vegetative Growth or Bloom/flowering?
Add anything else you feel would help us give you a most informed answer. Feel free to elaborate, but try to be brief and to the point. Short and to the point questions and facts will help us help you 
Strain unknown bag seed
Indoor
Max hight 7f
Width4ftby2ft
Hydroponic
Dyno grow
1200 watts of led
Temp day 70 75 dagrees
Night 65 7o dagrees
Bout two weeks in veg
I adjusted my ph from 5.5 to about 5.9 seemed to slow browning