I thought I was going to lose my frag due to dosing fluconazole when I first received the frag. The frag has hung on and recovered nicely and started to grow these past few weeks. I got some catching up to do but I think it will get there if it keeps growing at the pace it is now since recovery.
I almost killed mine as well. It's in my brand new growout system. I let the alkalinity get too high because I'm running a calcium reactor when I probably don't need to be adding hardly anything to the system. The alkalinity got to 11.2 and tips started to fry. Now it's back down to 8.3. Hardly any growth, if any at all, on the frags in this system so far.