Question about DWC nute strength

I'm on my second grow with Female Seeds C99. The first time I went with a hempy bucket but had trouble controlling the pH, I think due to the perlite I used. This second time now I pulled her out of the hempy solo cup she started in because the pH began shooting up dramatically after 24 hrs (4.1 -> 7.0!) and the leaves started turning pale. Now I'm trying to save her in a bubble bucket.

My question is this: how different is the feeding schedule in a DWC setup versus hempy? In other words, when I fed the nutes (Dyna-Gro) throughout the hempy cycle I found that if I exceeded 40% of the recommended amount at any time I'd start to burn the plant. Should I worry about this the same way in DWC, or should I just go by the recommended ppm's as a starting point?

At this early stage I'm only feeding 15% of the recommended amount (which worked fine in hempy), but the girl still looks a little pale, which could also be because not enough time has passed in the new setup...:confused: I just want to make sure I'm not starving her.
 
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