sick plant!!!

im currently growing some pinaple x press Xblue dream 1 of my girls new growth is turning realy yellow on new growth all the other 15 are fine cant figure it out I already flushed with ph water using basic flora nova grow its kind of weird there still growing but yellow help out !I was thinking maybe a sulphur locke out mabye

all of them are going the same direction see the light lime color in the center of the new growth, what was your feeding schedule when you first noticed this

I feed them them3 times a week but the sick one is going on the 3rd week so far I usaly get get a lime green on new growth bot goes away right after
ialso have a dog I he migt havepissed in it he likes doing shit like that !!I dot know