Young plant with brown rust spots?

Hi guys I have a crop king plant, not sure the strain cause it was a mixed pack, but she is showing weird problems, small circular brown rust spots, can anyone help diagnose the problem? I'm using pro mix soiless and Botanica really coco coir with yucca extract and worm castings in it and a bag of High quality compost, can anyone help ?

Bro bugs are eating your plants alive. Take care of that asap and check your soil for pest as well

No I don't think so, those pictures look a little misleading, there more like brown rust spots, their not bite holes at all

From the picture they look alright to me,possibly just getting adjusted to a hot soil.

spider mites...

If those are indeed spots and not holes then is a calcium deffy

jwreck said:

If those are indeed spots and not holes then is a calcium deffy

Click to expand...

Unless when careless watering and leaves get splashed.

If not the above quote....

TopDogTHC said:

Unless when careless watering and leaves get splashed.

If not the above quote....

Click to expand...

^^^^^^ this^^^^^

Doesn't look like water burns

Op- read the followin, http://www.growweedeasy.com/calcium-deficiency-cannabis

Are you by any chance using r/o water? Coco tends to hold calmag making it unavailable to the plant. the soil you are using is inert, meaning you have to supplement all the nutes and macros.
R/o water contains no calcium so if thats what you are using thats the problem