I picked up a very nice Pectinia "Space Invader" from
Danny at https://www.instagram.com/p/B926dtpp0qq/
I didn't spot feed it & it started to blanche. I then placed it in my sump & was able to feed it directly, increased my magnesium levels & placed it in partial shade with indirect flow. It grew two more eyes along the edge where the die off was. I believe he may also still have a few left.