So about 2 months ago I decided I would get my first ever anemone. Because my current 75 gallon was the first real proper reef tank I've ever had and it had been set up for about 5 months with fairly consistently good parameters I decided to go to my LFS
and pick up a green bubble tip anemone. After getting him he was perfectly fine for the first couple days but then he kept moving from place to place and never really settled down on a single spot. One pattern I noticed was he kept attaching himself to this one spot inside a cave in my rock work which gave him absolutely no light. After moving him from that's spot 2-3 times with him returning to it each time I just decided to let him be and let him leave it on his own. A month has passed sense then and because his spot was in a place not easily visible I kind of half forgot about him and assumed he was getting light still just from an angle I couldn't see. Today I decided I would try and move him 1 last time but after moving away the rocks I saw a completely decomposed gray blob where my anemone one was. Currently I have no idea why this happened and kind of want some answers as to allow me to prevent something like this from happening again in the future. So why did he keep going under the rock work? And what likely caused his death?
Any help would be great!