I had just done a water change earlier today. After I stupidly didn't read the label on the medicine for my clown with brooklynella and added it to the whole tank. My corals were having a bad reaction to this and the only one that seems to be gone is my trumpet coral but I'm not sure. It's not all white but it doesn't have that natural green/yellow to it so maybe it's not enteirely gone. Aside from that my levels and other fish are appearing to be normal.