Iced Grapefruit that's what is up. That's one unique sounding strain. I'm loving how detailed your comment on the week is, the whole EC PPM baffles me, I haven't a clue where even to start with all of that.
Almost 10 inches for 4 weeks that seems pretty strong and good, I couldnt even see any wind burn.
I learned an interesting thing today, did you know you can use aloe Vera as a cloning gel or medium? Just slice off a piece dip your cutting in it and bam! Great growth stimulator.
Happy growing to you. :)