Sick plants

[podurak]

Hi guys, firstly sorry for my bad English. Its my first grow and i'm about to give up. Growing cannabis is illegal in my country so i have limited possibilities. I need your help immediately. Thanks in advance for answers.

Problem: Yellow and dry leaves

Medium/grow method: Soil. Black peat with %30 pearlite

Feed: and supplements used:General Organics Grow,General Organics Bloom, General Organics Root Plus,

water source:Tap water( i wait 10 days before use it)

Strain/age:Barney's Farm Critical Kush Auto

light used:600 watt MH Grow Light 18/6 100 cm from plants

Climate:Max 27 min 23 centigrade degree

Additional info: I put them 25.5 L pots 30 days ago. First 20 days i used 110 watt CFL but they grow just a little bit. Then i bought 600 watt MH Grow Light and they started to grow and they were looking healty but last 3 days they are looking so bad Avarege humidty between %35-%40

 

[MedGrower]

I am a hydroguy so I cannot provide any expert help on this but it seems that the soil is too rich in nutrients and/or the pH is way off.

I would suggest looking into light feed soils and measure / adjust the pH of your feed. First couple of weeks all you need is water and you only need to let the water sit there for a day or so, 10 days is way too much IMHO.

Do you have pH of the soil and the solution you are putting in?

 

[podurak]

I am a hydroguy so I cannot provide any expert help on this but it seems that the soil is too rich in nutrients and/or the pH is way off.

I would suggest looking into light feed soils and measure / adjust the pH of your feed. First couple of weeks all you need is water and you only need to let the water sit there for a day or so, 10 days is way too much IMHO.

Do you have pH of the soil and the solution you are putting in?

My soil was 6.5 pH at start. Its 7 now. I just give them Root Plus half dosage of recommended doseage and didnt measure pH.

 

[chefdave]

podurak Way to much nutrients for seedling stage also peat is a potential problem. Do you have air circulation- ventilation in the room?

 

[podurak]

podurak Way to much nutrients for seedling stage also peat is a potential problem. Do you have air circulation- ventilation in the room?

Yeah, window is always open and there is a ventilator which works 18/6.

 

[namvet25]

Stop feeding nutes and just use ph plain water at 6.5 for a week or more.

 

[podurak]

Stop feeding nutes and just use ph plain water at 6.5 for a week or more.

Thank you so much for answer.