Yesterday I awoke to find that my sebae anemone that had been struggling had perished. I removed it, and headed to work. Upon return, I found nearly every coral and invert in my tank shrivled up or dead. I found that I had an ammonia spike and a pH drop. I did a 20 gallon water change and dumped in some ammonia lock and pH proper, but today none of the corals look any better. Any suggestions how I can salvage some of my thousands of dollars of coral and fish? The wierd thing is, all of the fish seem fine, it is only the corals and inverts that are suffering.