Well, this is what I think of this situation.

From my knowledge, white leaves mean iron deficiency within the plant because iron is critical for clorophyl production and photosynthesis. I also see that you are using CNS17 Bloom, which tells me that there is iron in your soil. From this, I can guess that there could be 3 things wrong:

1.) Is your pH out of wack?
2.) Are you root bound yet? (I saw your pots and I couldn't tell if they were large enough for the size of your plant)
3.) Iron competes with Zinc and Copper for availability to the plant so, if you have more of these than neccessary, iron may be getting pushed aside.

Check on the first two before checking on the last one!!

Also, you should probably get a second opinion on this because I am in no way a professional. I just work in a greenhouse and read a lot!

SMG
SauceeMcGee Reviewed by SauceeMcGee on . magnesium, calcium or nute burn not sure!!!! hey guys wondering if some one can help me out here :mad:.. got something going on with my purple urkle that is in coco... im not postive what it is but i think its either magnesium or calcium... or maybe its nute burn not sure im using full strength of cns17 bloom 2-2-3 and full strength sweet.. i water with full strength everyday then flush on mondays.. i drain to waste and im outdoor... i give her a gallon of water ever morning .. it seems to be a perfect watering schedule for her.. i Rating: 5