My clownfish went missing!

[leafyseadragon]

I looked in my tank today and I seem to be missing a clownfish. I've looked in the tank at every angle, can't even find a corpse. He was just fine yesterday.

I am sure he wasn't sick, and I've had him for over a year. The suspects are:

1. longnose hawkfish (he seemed to ignore the clown)
2. mushroom coral (they don't sting fish, do they?)
3. lots of mini feather-dusters
4. turbo snail
5. 4 green hermit crabs
6. a two-legged, non-aquatic thief

I have eggcrate over the tank, so he couldn't have jumped out. Could a hermit crab attack and kill a sleeping clown?

 

[quarryshark]

Do you have built in overflow? One of mine has gotten into them twice. Don't see any threats on your list.
LR hitchhiker?

 

[phases99]

What type of mushroom coral? The larger Rhodactis species can swallow fish. Even with the eggcrate you would be suprised how small of a space a fish can jump out of.

 

[nodoubt471]

perc clown? they are known to hide pretty well for quite some time, they are very shy.

 

[austinsdad]

Clowns seem to sleep in a constant motion in a current I think. A crab definitely couldn't have gotten him while sleeping. When's the last time you saw him? If only overnight, I'd doubt if he'd have been completely consumed by crabs. But if a couple of days....?