White powdery substance Could really use some Rollitup knowledge Thx

Hi guys, Just started my first RDWC 5 days ago, and ive got 8 XXX Bubba Kush rooted clones growing in an 8 pot DIY undercurrent system. Im running Current Culture's, Cultured Solutions(UC roots and VEG A/B) and following their nutrient schedule. Im using a new RO system with water at no more than 3 ppm. 2 600 watt HPS, ppm at 150 , ph 6.o, my lights are 3 feet from the plants and have been running 22/2 . Everything is finally in working order i'd say. Im seeing a slight wilt in my plants and maybe perhaps a little yellowing, Im not sure the top parts of plants are just really light green (which are about 6 in. high right now). Id say i already know the cause of the problem, I ran the system for the first 4 days without a chiller and my water temps couldve reached a max temp of 85 F (EEEEK) . Ive got my system chilled now and the water is at 68 deg. Roots have finally reached the bottom of the net pots and are peeking through, but ive noticed a small amount of white powder at the base of my stems on the rapid rooter. (along with the wilting and yellowing which i assumed was purely because of the water temps) I was sure my plants would pull through once i brought the chiller in but now im not so sure, I feel foolish for jumping right in but i have to say im excited and thought I could fight the heat with Ice cubes (water bottles) <-- TERRIBLE INFORMATION there i might add.. does not work and its very stressful. Should i Flush with uc roots and RO water? Im not sure what the powder looking stuff is, I was wondering if it couldve been a powder used to root the clone that has just left a sediment. My roots only recently finally reached the water, could it be this is all stress from the roots trying to reach the water level? budnuggs 023.JPG budnuggs 025.JPG budnuggs 026.JPG budnuggs 027.JPG budnuggs 028.JPG budnuggs 029.JPG budnuggs 031.JPG
 

hotrodharley

Well-Known Member
Powder looks like rooting powder precipitate. What is your solution EC or PPM? Your roots seem adequate from the pic at this point.
 
My EC is running steady at 150- 160, Roots have been the only thing that have made me reassured. My problem was the wilting. And I hope that you are right about the rooting powder because that was my first guess. @hotrodharley
 
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