LTA vs heater

So, I worked up enough nerve to try an anemone last week. Picked up a nice healthy LTA which my tiny maroon clown hopped in within a few hours. All's been well until today. I came home from work to find he'd move next to the heater and the tentacles touching it were melted. I moved it away (the clown followed, he doesn't seem to mind the melted bits). About 70% of the tentacles and the base are fine, about 10% melted and the surrounding 20% a shrunken and look bad.



Is there any hope he'll recover? Anything I can do to help?