shrimp death

Our tank has been easy and trouble-free for 5 years... two days ago we lost 2 damsels, a wrasse and a shrimp, next day another shrimp and now our coral looks like this during the day (strings coming off it) and shriveled tonight...not sure what is happening but scared for those left in the tank

Hey all, so for over the past year or so I’ve tried to keep cleaner and fire shrimp in my reef tank, but for some reason I can’t keep them alive for any longer than a few months. It always comes to me checking out the tank one morning, and seeing what looks like a molted exoskeleton and the...