Anemone eats clownfish?

[Tigerarmy]

My wife found my clownfish in or near the anemone mouth dead and covered with a pinkish slime coating? I had two clownfish and both were hosting in the anemone with a anemone crab. I've got 1 cleaner shrimp, 1 blue devil, 1 niger trigger, had 2 false percs. Anyone have any idea why he died and what the slime coating is?
Is this going to happen again, should I be looking for a new home for this anemone?