Haha... no stunts, or not that I know of...
During the thorough clean up, I found the dead body of the neon goby stuck underneath a rock. I was surprised that it was unreachable for so many shrimps, but that seems to be the main suspect for bad water quality. The clowns got brook and the rest is history. Normally, shrimps would be the first to react, but all of my shrimps are still healthy. Some even just molted!