I remember Rod losing fish the same way, sorry to hear it happened.
I'm going to pull my 2nd nest tonight, lost all from the 1st one last week, may not hatch til tomorrow evening but with my luck.
FB, I had a glass uv shield blow on a 250de mh light last Weds evening, I didn't find it until the next evening. I'm watching my sps that were under it bleach. I normally check the tanks a million times a day but have been having back problems so those corals got a good 7-8 hours with no sun screen.
I do have a question too, do you add phyto to the larvae tank with the rotifers or just the rots?