ive never seen anything like that on a normal healthy plant(not saying these look unhealthy) but ide put that down to some kind of deficiency seemings as leaves are ment to be green down to photosynthesis if any other colour then this shows that cell is breaking.......i can already see you have the start of what looks like nute burn,maybe you are using to much of one thing and not enuff of the other
but otherwise things look kushty here! bro
peace
shiva
