what are these dots

the old leaves has this skinny dots why did it happened boys?
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thanks

ya can see dots in 5. picture

the necrotic spots are usually standard cal/mag deficiency, which is what it looks like in your case (tho it kinda hard to see in ur pics)

i agree,i had some cal/mag def and thats how it starts.keep an eye on your ph,too much or too little will cause this(i keep mine at 5.5-6.0,5.8 is best or it could be that your nutes doesnt have anough of it,try adding some calmag or some other micro nutes with calmag in it,best of luck

thanks
my other plant that havent any spots and she looks beautiful although they are eating in the same reservoir
is temperature the reason of problem ?

they look good to me

when lights on i have 106 F temp
when off 86 Fahrenheit

this is snow white, she is beautiful, but the other plant have spots, why that is happened i dunno :S

i added some calcium, magnezium and sulfur

ethabhae said:

when lights on i have 106 F temp
when off 86 Fahrenheit

Click to expand...

those temps are really high.do u have exhaust in your room?at temps that high your plants dont take up nutes as well so this is most likely your problem,best of luck

First grow, bagseed starting 9th week flowering (I think) I too was wondering what these dark spots are on some of the fan leaves, looks a little different tho. I have been feeding plain water the last few waterings. I think I started to flush a little early but am afraid to give more nutes now as its not too far from harvest.

your and my dots are different, i have them on leaves tips. before my spots appeaer there is some yellowish color on tips.. what temperature have you dude?

i exhaust my grow room 300m3/h all time

Sometimes it's TOO MUCH cal-mag, at least it was for me

what is the reason of yellowing new leaves? do yu know