While waiting on the Triton results, I'd recommend you to glance at this thread:
https://www.reef2reef.com/threads/help-my-sps-are-paling-and-i-dont-know-what-to-do.210035/
@Russ265 has written a very concise, accurate summary on the first post that sounds very familiar to your situation. I know you're not into adjusting anything until the Triton results come back, but based on what he said and your system running "0" nutrients, you may have to tweak more, unless you want to risk losing your new frags. Reduce your lighting schedule and dial it back even more until you get some nutrients in the tank. Lower the dKH to 7.0-7.5 (this one's important) and get those nitrate numbers up. Even phosphate could use a bump, if it truly is 0.00. You might even consider dosing nitrate and phosphate if you can't bring the numbers up to detectable levels via heavier feeding or current methods you're using.