fin rot or something else??? Help!

hey im worried about my snowflake clown fish im not sure if this is fin rot or maybe it nothing. My koran angel that i recently bought had gotten ich and its dorsal fin is getting fin rot or some white cloudy spot are eat it but its on my qt tank right now after removing it from my main tank and now the snowflake is have something on its back tail please help and lemme know if i should move it or just leave her. thanks heres a video since i couldnt get a clear shot of her [youtube]http://youtu.be/ZRz7Dg3OunU[/youtube] thank so much again
 
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