I have had my RBTA for a year now and it keeps getting smaller. When I first got it, it was approximately 3-4 in. in diameter. Over the last few months it has gone behind the rocks or under them for a couple of weeks at a time. Every time it comes back to its favorite rock it is smaller. It is being hosted by a Maroon Clown. Today, I notice as he resurfaced from his deep depths he is about the size of a quarter. It does not appear to have split. I don't see any signs of any other anemones. I was feeding it pieces of silversides but the maroon would get real aggressive with the food and eat it himself or shove it to the mouth of the anemone. Any suggestions would be greatly appreciated. Thanks, John