Originally Posted by Sniperhank
It didn't eat it.
Can you tell us more about the system? Size, current parameters, so on?
If the tank isn't big enough or not enough places to hide bullying or stress could have killed the clownfish, or even an ammonia spike. The same stress can cause fish to jump and go carpet surfing.
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It's the fluval m90 set up (135L) we have made a top of the tank so there's no way it could of escaped, we've moved the rocks and nothing to be shown! We fed misses puffer a muscle earlier and she swallowed it whole I therefore still believe she swallows my common clown whole.