mystery fish deaths

[Kellogg]

I had 2 1" captive bred false percs in my 90 gallon reef. They seemed to be doing good and had been eating well. All of a sudden I came home today to find them dead, sucked up against a powerfilter I use solely for circulation. I don't think the current was too strong to pull the fish up to the intake and there are no other fish in the tank. My only suspect is a bubble tip anemone, which the clowns had just started to go into after a month of ignoring it. The bodies of the clowns were completely unharmed so I don't think they were attacked by anything else. Does anyone have any ideas as to what could have happened?

 

[tazdevil]

Can't remember the name of it, but isn't there a clownfish specific disease thats only sign is increased slime production, however lethal to clowns? Could this be the culprit??

 

[Kellogg]

Could be. It just seems so odd for them to be healthy and eating last night and dead today. A few weeks ago I found and removed a 2.5" crab that was in the tank, which I think had killed and eaten a few other clowns I had. Its just weird because there seemed to be no bodily injury to the clowns.

 

[sese]

Did you test the water?

 

[Kellogg]

The water is good. I also just did about a 40% water change a week ago. I still have good polyp extension from all my acros and it seems like they would close up if water quality was an issue, but I could be wrong.

 

[Rich-n-poor]

There is a type of mantis that has a club fist instead of a sharp pincer. the mantis can strike hard enough to kill a fish in one blow. Is it possible you have another stowaway in your rock ?
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life during the great depression