need help identifying a spots that look like rust

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Why do they look like that
 

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mornin'
since your plants got into their second or third week of flowering (?) you might want to cut out your calmag (expecially that nitrogen, since the plant isn't going to grow much higher/build up many more leaves - you can see a little of a toxicity, regarding those clawing leaves)
also when it comes to later flowering stage, them girls might need more phosphorus, i think that's what your brown spots look like
maybe get a phosphorus plus, or any other PK fertilizer

still - i'm a newbee, wait for someone to confirm this or give you else information, before you go buy what i suggested
:oops1:
good luck boi
 
Force-feeding plants too much food can cause those kinds of problems.
Why do they look like that

My opinion is that most problems are caused by over-feeding, which greatly stresses the plant, and makes it prone to illness.
If those were my plants, I'd reduce the feed to a minimum, and hope they recover.
 
:toke:..need more info,.. fill in the patient form in the colored section above this one,.. just c/p it into here and add info,... what it is and why it's happening can't be nailed down by a couple pics alone,....
 
:toke:..need more info,.. fill in the patient form in the colored section above this one,.. just c/p it into here and add info,... what it is and why it's happening can't be nailed down by a couple pics alone,....
I have not added any nutes to it at all since I first started growing it it’s been under a 300w led light i ordered a 600w one it should come today and it is growing on soil it’s in my closet and this is the second week of flowering
 
need to follow what @Waira said about filling out the form in the sticky above. without knowledge of your grow we can’t guess what’s wrong....
 
Please fill in this form: (copy and paste part is below, this first one tell what specifically to include)

-Problem: (brief description)
-Medium/grow method: soil; soilless-- coco, or peat based like Promix, etc. (please provide the actual product name); DWC, NFT, etc.
-Feed and supplements used: include brand, dosage/strength, frequency of feeding and watering (alone); method-- by hand, drippers, rercirc' or drain-to-waste,... N-P-K #'s too if you can!
-Water source: RO/DI; tap- dechlorinated-?..... EC or TDS reading; pH (don't bother with this on RO/DI, do bother with TDS/EC though to confirm it's working well enough)
-Strain and age
-Climate: night and day ambient T and RH%; res' temperatures; any extremes in T/RH% exposure
- Light used: HID, LED, COB, combo of,... wattage; light cycle hours (20/4, 18/6 , etc.); distance to tops....
-Additional info: How long have the plants been affected?...How fast did symptoms appear?... Anything else you think might be relevant..

--Pictures including WHOLE PLANT PICS, and troubled leaves.. use normal light or flash as other light sources ruin color rendering, critical for diagnostics!

[emoji418] - - - - - - - - - - -
(copy and paste)-->

Problem:

Medium/grow method:

Feed: and supplements used:

water source:

Strain/age:

light used:

Climate:

Additional info
 
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