Thanks for the responses, guys! I misworded my post though(I was about at a [6] when I wrote the post). I'm using Advanced Nutes Jungle Juice. To clarify, I'm in my 4th week of flower doing a 1 part Grow, 2 parts Micro, and 5 Parts Bloom at about 850 ppm 5.6-6 pH.
Its my first DWC, and I've been concerned about mold growing in the reservoir, and salt buildup in the roots. I've heard people say they change their water every week to prevent these things, but seeing it firsthand, the transfer is always stressful to the plant for a day or two. I'm not going to change out the water until I'm 2 weeks out and flushing. I'll keep the water level, nutes and ph stable until then. If I see anything funky I'll report back, but CGI and PP, I think you guys are steering me in the right direction. I appreciate it.