I know why my mandarin died. I purchased a fish that I didn’t realize was a pod eater. He was a much faster and more aggressive eater and he ate all my pods. My tank has been up and cycled for over a year and I have had Kermit for over 8 months. Also my manderian ate frozen but that food is no longer available. ( nutramar ova). I was feeding frozen fish eggs, mysis shrimp, brine shrimp, cyclops, and copepods but he refused to eat that food. He was fat and healthy until I purchased that fish who has since been rehomed. Before I put the anemone in my ammonia was 0 which it has been at for over 8 months. I also put live copepods in my tank all the time. I have only lost these two guys since I have set up my tank. It has all live rock and live sand. My babies are fed a variety of frozen and flakes food. I have a total of three fish in my tank now. Before it was 4. I have never had an issue with my filter. It is a 75 gal filter on a 30 gal aquarium so I don’t understand why it would all of a sudden be an issue. Anemone was acting funny from the moment I put him in and I read several articles etc that said to leave him be for a few days. That’s what I did then this morning he was dead. I have talked to several people at lfs as well as read several threads on the forum as well as on other forums along with articles that all say a dead animal in your tank will more than likely cause an ammonia spike. All of my other fish, my feather duster, and my shrimp are acting normal. Keeping a close eye and planning on a second water change Monday. Adding extra carbon to go along with the bag of Purigen I added this afternoon.