The smart people on the internet were right - Emilia was hungry. After I gave her nutes a couple of times she made a full recovery. No more yellow leaves. And all those growth tips started growing. Interestingly on every node one growth tip would grow much, much more than the other. I'm just happy she seems to be doing all right. Giving her this week to recover and once she's back to being healthy and vigorous it's finally gonna be time for her first topping. We're a bit behind schedule now but that's ok :)