1st Grow, my plants have an issue

[enoughskunk]

Hello guys, i started my first grow 17 days ago in my terrace, it was a rough ride. I made rookie mistakes. They became very strechy, cant carry themselves now but they are fine with sticks. I am gonna add extra soil to them for additional support. This morning i noticed these spots, i couldnt identity the problem. Can you help me please? Additionally, extreme tempratures are coming in 2 days, it will be 38-39 degress for 4-5 days. How should i protect my plants? Thank you all.

Problem: Rusty looking spots at leaves

Medium/grow method: Biobizz Light Mix 3 gal

Feed: and supplements used: TanG Auto Schedule / AN Sensi Bloom AB 1ml/1lt at this point

water source: Filtered tap water, waits 1 day before it goes to plants. Im watering 500-600 ml every 48hours when soil gets dry.

Strain/age: Blue Mystic Auto Day 17

light used: 10hours Direct Sunlight

Climate: around 30/14 lately.

Additional info : I noticed some ants and clover mites in the terrace but i have never seen them on the leaves. They are attracted to other plants in my terrace.

 

[namvet25]

Those tiny spots could from nutes touching leaves but there nothing to worry about.During the heat issue make sure they are fully watered and maybe give them less sun until it cools down.

 

[enoughskunk]

Those tiny spots could from nutes touching leaves but there nothing to worry about.During the heat issue make sure they are fully watered and maybe give them less sun until it cools down.

Thanks for your help! According to schedule, nutes are given in every watering, however, i will give more water during the heat wave. I was thinking it might lead to a nute burn. Should I water them one day without nutes, and one day with nutes? What is your opinion?

 

[namvet25]

Hold off the nutes until it cools down a liile than feed every other week.