What’s wrong with my plants?

out of no where a bunch of yellow started popping upon the middle of my tops.. first time grower not sure if it’s normal. Please help

Feed some micros.

Looks like it could be PH issue but these things are hard to pinpoint from pictures here's a link to help you out
http://www.growweedeasy.com/cannabis-symptoms-pictures

mmjmon said:

Feed some micros.

Click to expand...

All I have is Fox farm trio

nothing a pot up would not fix

include 25% perlite in the miz

to avoid root compaction etc

good luck