I bought a dying acan from LFS for 5 bucks. It is missing about 3/4 of an inch when I bought it but it hasn't gotten any worse. I always buy dying corals and am always successful with bringing them back. I have revived a Duncan, frogspawn, montipora, torch coral, green polyps which were completely white and a lot of them got their color back. I always use Coral RX and do a coral dips about 3 or 4 times a week for bringing a coral back. My acan was doing great and I was hand feeding it jumbo mysis shrimp and also target feeding it with Coral Frendzy at night. But the past couple days it hasn't been putting it's feeding tenticals out at night and I looked today and it look terrible, it's all big and swollen and kind of wrinkly. I did tests and everything is perfect except my alkalinity is about 9KH almost a little low. Any ideas what's wrong?

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