Hello! i noticed my plants leaves started developing yellow spots. its the end of week 3 in veg stage, i started using a fertilizer with NPK 6.5,1.5,3.5( the only one i found at my local store.. i am not from america).. i do not know what my waters ph is, i dont have a umidifier(i use a can with water with a napkin inside) and i do not know the CO2 levels.. basically this is my first grow and i didnt have enough money to do everything proper.. any help will be needed.. thank you!
beginning of yellow spots leaves
- Thread starter butchi
- Start date
mike4c4
Well-Known Member
Are you using tap water? They look fine to me.
mike4c4
Well-Known Member
The water will be ok. I cant see the spots. Look for mites under the leaves, they are very very small. If its not bugs then you might need some cal/mag, but i dont see nothing to worry about. they look fine to me.Yes.. but i leave the water out for a day or so.. what water should i use? you can see the spots in the 3rd picture.. i think they are in the early stage and i panicked a little and i am trying to correct it
mike4c4
Well-Known Member
something else. You said water can. Do you mean metal? If so stop and use plastic only.Thank you much for your answer!! i checked and there were no mites.. hope the spots wont spread
Rascality Afoot
Well-Known Member
If you don't know the ph of your water, then it may be nutrient lockout. You can get ph test strips at pet stores. They're cheaper than a ph meter, but less accurate. Your nutrients are only available to your plants at a certain ph. About 5.4-6.8 depending on medium/strain. Find your ph. It is critical to your success. Looking good so far though!
